diff --git a/doc/pub/week38/html/._week38-bs000.html b/doc/pub/week38/html/._week38-bs000.html
index 390279d25..61eeb4204 100644
--- a/doc/pub/week38/html/._week38-bs000.html
+++ b/doc/pub/week38/html/._week38-bs000.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
@@ -304,7 +304,7 @@ MathJax.Hub.Config({
 <!-- ------------------- main content ---------------------- -->
 <div class="jumbotron">
 <center>
-<h1>Data Analysis and Machine Learning: Logistic Regression</h1>
+<h1>Data Analysis and Machine Learning: Logistic Regression and Optimization</h1>
 </center>  <!-- document title -->
 
 <!-- author(s): Morten Hjorth-Jensen -->
@@ -320,7 +320,7 @@ MathJax.Hub.Config({
 </center>
 <br>
 <center>
-<h4>September 22 and 23</h4>
+<h4>Week 38</h4>
 </center> <!-- date -->
 <br>
 
@@ -359,7 +359,7 @@ MathJax.Hub.Config({
 </footer>
 -->
 <center style="font-size:80%">
-<!-- copyright --> &copy; 1999-2022, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
+<!-- copyright --> &copy; 1999-2023, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
 </center>
 </body>
 </html>
diff --git a/doc/pub/week38/html/._week38-bs001.html b/doc/pub/week38/html/._week38-bs001.html
index ba7096458..3abcfdb18 100644
--- a/doc/pub/week38/html/._week38-bs001.html
+++ b/doc/pub/week38/html/._week38-bs001.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
@@ -305,16 +305,8 @@ MathJax.Hub.Config({
 <h2 id="plans-for-week-38" class="anchor">Plans for week 38 </h2>
 
 <ul>
-<li> Lab Wednesday and Thursday: work on project 1</li>
-<li> Thursday: Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression</li>
-<ul>
-  <li> <a href="https://youtu.be/sdt_BFla8uA" target="_self">Video of lecture</a></li>
-  <li> <a href="https://www.youtube.com/watch?v=Xz0x-8-cgaQ" target="_self">Video on Bootstrapping</a></li>
-</ul>
-<li> Friday: Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods</li>
-<ul>
-  <li> <a href="https://youtu.be/7OdqoLOphTA" target="_self">Video of lecture</a></li>
-</ul>
+<li> Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression</li>
+<li> Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods</li>
 <li> Reading recommendations:
 <ol type="a"></li>
  <li> See lecture notes for week 37 on cross-validation and week 38 at <a href="https://compphysics.github.io/MachineLearning/doc/web/course.html." target="_self"><tt>https://compphysics.github.io/MachineLearning/doc/web/course.html.</tt></a></li>
diff --git a/doc/pub/week38/html/._week38-bs002.html b/doc/pub/week38/html/._week38-bs002.html
index 7961b7330..1565e8327 100644
--- a/doc/pub/week38/html/._week38-bs002.html
+++ b/doc/pub/week38/html/._week38-bs002.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs003.html b/doc/pub/week38/html/._week38-bs003.html
index 97f292075..82ac52414 100644
--- a/doc/pub/week38/html/._week38-bs003.html
+++ b/doc/pub/week38/html/._week38-bs003.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs004.html b/doc/pub/week38/html/._week38-bs004.html
index 715a338c4..7726579a4 100644
--- a/doc/pub/week38/html/._week38-bs004.html
+++ b/doc/pub/week38/html/._week38-bs004.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs005.html b/doc/pub/week38/html/._week38-bs005.html
index 0d716bd81..44be15f1b 100644
--- a/doc/pub/week38/html/._week38-bs005.html
+++ b/doc/pub/week38/html/._week38-bs005.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs006.html b/doc/pub/week38/html/._week38-bs006.html
index c683cac18..627e2e9ec 100644
--- a/doc/pub/week38/html/._week38-bs006.html
+++ b/doc/pub/week38/html/._week38-bs006.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs007.html b/doc/pub/week38/html/._week38-bs007.html
index 7d035cbb5..7f8f61c30 100644
--- a/doc/pub/week38/html/._week38-bs007.html
+++ b/doc/pub/week38/html/._week38-bs007.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs008.html b/doc/pub/week38/html/._week38-bs008.html
index 477503db7..10cc4e21a 100644
--- a/doc/pub/week38/html/._week38-bs008.html
+++ b/doc/pub/week38/html/._week38-bs008.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs009.html b/doc/pub/week38/html/._week38-bs009.html
index 544ff0a89..35d7c4cad 100644
--- a/doc/pub/week38/html/._week38-bs009.html
+++ b/doc/pub/week38/html/._week38-bs009.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs010.html b/doc/pub/week38/html/._week38-bs010.html
index 7f8b61499..0045ed112 100644
--- a/doc/pub/week38/html/._week38-bs010.html
+++ b/doc/pub/week38/html/._week38-bs010.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs011.html b/doc/pub/week38/html/._week38-bs011.html
index a7f265bc5..13268a3b8 100644
--- a/doc/pub/week38/html/._week38-bs011.html
+++ b/doc/pub/week38/html/._week38-bs011.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
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       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs012.html b/doc/pub/week38/html/._week38-bs012.html
index f32f31230..ef45cd3ea 100644
--- a/doc/pub/week38/html/._week38-bs012.html
+++ b/doc/pub/week38/html/._week38-bs012.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs013.html b/doc/pub/week38/html/._week38-bs013.html
index ac4f78338..884af45d2 100644
--- a/doc/pub/week38/html/._week38-bs013.html
+++ b/doc/pub/week38/html/._week38-bs013.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs014.html b/doc/pub/week38/html/._week38-bs014.html
index 64110bf3d..a8d2659e1 100644
--- a/doc/pub/week38/html/._week38-bs014.html
+++ b/doc/pub/week38/html/._week38-bs014.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs015.html b/doc/pub/week38/html/._week38-bs015.html
index 6d4360eeb..412dacaf3 100644
--- a/doc/pub/week38/html/._week38-bs015.html
+++ b/doc/pub/week38/html/._week38-bs015.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs016.html b/doc/pub/week38/html/._week38-bs016.html
index 17610878f..70ebf75ba 100644
--- a/doc/pub/week38/html/._week38-bs016.html
+++ b/doc/pub/week38/html/._week38-bs016.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs017.html b/doc/pub/week38/html/._week38-bs017.html
index 49244c626..fa9bcb3b5 100644
--- a/doc/pub/week38/html/._week38-bs017.html
+++ b/doc/pub/week38/html/._week38-bs017.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs018.html b/doc/pub/week38/html/._week38-bs018.html
index 1938f2b14..7c90aafbb 100644
--- a/doc/pub/week38/html/._week38-bs018.html
+++ b/doc/pub/week38/html/._week38-bs018.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs019.html b/doc/pub/week38/html/._week38-bs019.html
index fd7d8cae3..502a6ca73 100644
--- a/doc/pub/week38/html/._week38-bs019.html
+++ b/doc/pub/week38/html/._week38-bs019.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs020.html b/doc/pub/week38/html/._week38-bs020.html
index 5e58e02f5..849b213e6 100644
--- a/doc/pub/week38/html/._week38-bs020.html
+++ b/doc/pub/week38/html/._week38-bs020.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs021.html b/doc/pub/week38/html/._week38-bs021.html
index f2ec05512..603714b2d 100644
--- a/doc/pub/week38/html/._week38-bs021.html
+++ b/doc/pub/week38/html/._week38-bs021.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs022.html b/doc/pub/week38/html/._week38-bs022.html
index d5842a6c6..a5ea1a172 100644
--- a/doc/pub/week38/html/._week38-bs022.html
+++ b/doc/pub/week38/html/._week38-bs022.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs023.html b/doc/pub/week38/html/._week38-bs023.html
index 34fc67597..6b741c2a0 100644
--- a/doc/pub/week38/html/._week38-bs023.html
+++ b/doc/pub/week38/html/._week38-bs023.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs024.html b/doc/pub/week38/html/._week38-bs024.html
index f830f35c0..9f47e0d55 100644
--- a/doc/pub/week38/html/._week38-bs024.html
+++ b/doc/pub/week38/html/._week38-bs024.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs025.html b/doc/pub/week38/html/._week38-bs025.html
index 761b0b7a1..e6b1f95d4 100644
--- a/doc/pub/week38/html/._week38-bs025.html
+++ b/doc/pub/week38/html/._week38-bs025.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs026.html b/doc/pub/week38/html/._week38-bs026.html
index 785c04612..6af0ab582 100644
--- a/doc/pub/week38/html/._week38-bs026.html
+++ b/doc/pub/week38/html/._week38-bs026.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs027.html b/doc/pub/week38/html/._week38-bs027.html
index 55ae40138..784036f1f 100644
--- a/doc/pub/week38/html/._week38-bs027.html
+++ b/doc/pub/week38/html/._week38-bs027.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs028.html b/doc/pub/week38/html/._week38-bs028.html
index 749fa4af7..60616d328 100644
--- a/doc/pub/week38/html/._week38-bs028.html
+++ b/doc/pub/week38/html/._week38-bs028.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs029.html b/doc/pub/week38/html/._week38-bs029.html
index fc2698f60..dc0887120 100644
--- a/doc/pub/week38/html/._week38-bs029.html
+++ b/doc/pub/week38/html/._week38-bs029.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs030.html b/doc/pub/week38/html/._week38-bs030.html
index 2d4376166..715d28df0 100644
--- a/doc/pub/week38/html/._week38-bs030.html
+++ b/doc/pub/week38/html/._week38-bs030.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs031.html b/doc/pub/week38/html/._week38-bs031.html
index 20c6e7404..7524690c7 100644
--- a/doc/pub/week38/html/._week38-bs031.html
+++ b/doc/pub/week38/html/._week38-bs031.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs032.html b/doc/pub/week38/html/._week38-bs032.html
index ddb232fbb..38646adb1 100644
--- a/doc/pub/week38/html/._week38-bs032.html
+++ b/doc/pub/week38/html/._week38-bs032.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs033.html b/doc/pub/week38/html/._week38-bs033.html
index b4a7937a2..c95b6142e 100644
--- a/doc/pub/week38/html/._week38-bs033.html
+++ b/doc/pub/week38/html/._week38-bs033.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs034.html b/doc/pub/week38/html/._week38-bs034.html
index 99911b41c..203539ec5 100644
--- a/doc/pub/week38/html/._week38-bs034.html
+++ b/doc/pub/week38/html/._week38-bs034.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs035.html b/doc/pub/week38/html/._week38-bs035.html
index 1fe3205b8..18403ff9b 100644
--- a/doc/pub/week38/html/._week38-bs035.html
+++ b/doc/pub/week38/html/._week38-bs035.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs036.html b/doc/pub/week38/html/._week38-bs036.html
index ed7196ddb..8ec9486db 100644
--- a/doc/pub/week38/html/._week38-bs036.html
+++ b/doc/pub/week38/html/._week38-bs036.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs037.html b/doc/pub/week38/html/._week38-bs037.html
index 8cb652456..33d143faf 100644
--- a/doc/pub/week38/html/._week38-bs037.html
+++ b/doc/pub/week38/html/._week38-bs037.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs038.html b/doc/pub/week38/html/._week38-bs038.html
index b99bc7426..096dcb279 100644
--- a/doc/pub/week38/html/._week38-bs038.html
+++ b/doc/pub/week38/html/._week38-bs038.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs039.html b/doc/pub/week38/html/._week38-bs039.html
index fba97bc25..016656407 100644
--- a/doc/pub/week38/html/._week38-bs039.html
+++ b/doc/pub/week38/html/._week38-bs039.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs040.html b/doc/pub/week38/html/._week38-bs040.html
index 6554024be..9dfd3d65f 100644
--- a/doc/pub/week38/html/._week38-bs040.html
+++ b/doc/pub/week38/html/._week38-bs040.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/._week38-bs041.html b/doc/pub/week38/html/._week38-bs041.html
index 204894b7f..4565669e3 100644
--- a/doc/pub/week38/html/._week38-bs041.html
+++ b/doc/pub/week38/html/._week38-bs041.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
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-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
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diff --git a/doc/pub/week38/html/._week38-bs042.html b/doc/pub/week38/html/._week38-bs042.html
index f92305eae..f27a69caa 100644
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+++ b/doc/pub/week38/html/._week38-bs042.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
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-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
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@@ -223,7 +223,7 @@ MathJax.Hub.Config({
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       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
diff --git a/doc/pub/week38/html/week38-bs.html b/doc/pub/week38/html/week38-bs.html
index 390279d25..61eeb4204 100644
--- a/doc/pub/week38/html/week38-bs.html
+++ b/doc/pub/week38/html/week38-bs.html
@@ -8,8 +8,8 @@ doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=d
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-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <!-- Bootstrap style: bootstrap -->
 <!-- doconce format html week38.do.txt --html_style=bootstrap --pygments_html_style=default --html_admon=bootstrap_panel --html_output=week38-bs --no_mako -->
 <link href="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css" rel="stylesheet">
@@ -223,7 +223,7 @@ MathJax.Hub.Config({
       <span class="icon-bar"></span>
       <span class="icon-bar"></span>
     </button>
-    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression</a>
+    <a class="navbar-brand" href="week38-bs.html">Data Analysis and Machine Learning: Logistic Regression and Optimization</a>
   </div>
   <div class="navbar-collapse collapse navbar-responsive-collapse">
     <ul class="nav navbar-nav navbar-right">
@@ -304,7 +304,7 @@ MathJax.Hub.Config({
 <!-- ------------------- main content ---------------------- -->
 <div class="jumbotron">
 <center>
-<h1>Data Analysis and Machine Learning: Logistic Regression</h1>
+<h1>Data Analysis and Machine Learning: Logistic Regression and Optimization</h1>
 </center>  <!-- document title -->
 
 <!-- author(s): Morten Hjorth-Jensen -->
@@ -320,7 +320,7 @@ MathJax.Hub.Config({
 </center>
 <br>
 <center>
-<h4>September 22 and 23</h4>
+<h4>Week 38</h4>
 </center> <!-- date -->
 <br>
 
@@ -359,7 +359,7 @@ MathJax.Hub.Config({
 </footer>
 -->
 <center style="font-size:80%">
-<!-- copyright --> &copy; 1999-2022, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
+<!-- copyright --> &copy; 1999-2023, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
 </center>
 </body>
 </html>
diff --git a/doc/pub/week38/html/week38-reveal.html b/doc/pub/week38/html/week38-reveal.html
index f83edb523..6a35f3028 100644
--- a/doc/pub/week38/html/week38-reveal.html
+++ b/doc/pub/week38/html/week38-reveal.html
@@ -9,8 +9,8 @@ doconce format html week38-reveal.html week38-reveal reveal --html_slide_theme=b
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 <meta name="generator" content="DocOnce: https://github.com/doconce/doconce/" />
 <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression">
-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 
 <!-- reveal.js: https://lab.hakim.se/reveal-js/ -->
 
@@ -168,7 +168,7 @@ MathJax.Hub.Config({
 <section>
 <!-- ------------------- main content ---------------------- -->
 <center>
-<h1 style="text-align: center;">Data Analysis and Machine Learning: Logistic Regression</h1>
+<h1 style="text-align: center;">Data Analysis and Machine Learning: Logistic Regression and Optimization</h1>
 </center>  <!-- document title -->
 
 <!-- author(s): Morten Hjorth-Jensen -->
@@ -184,13 +184,13 @@ MathJax.Hub.Config({
 </center>
 <br>
 <center>
-<h4>September 22 and 23</h4>
+<h4>Week 38</h4>
 </center> <!-- date -->
 <br>
 
 
 <center style="font-size:80%">
-<!-- copyright --> &copy; 1999-2022, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
+<!-- copyright --> &copy; 1999-2023, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
 </center>
 </section>
 
@@ -198,21 +198,8 @@ MathJax.Hub.Config({
 <h2 id="plans-for-week-38">Plans for week 38 </h2>
 
 <ul>
-<p><li> Lab Wednesday and Thursday: work on project 1</li>
-<p><li> Thursday: Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression</li>
-<ul>
-
-<p><li> <a href="https://youtu.be/sdt_BFla8uA" target="_blank">Video of lecture</a></li>
-
-<p><li> <a href="https://www.youtube.com/watch?v=Xz0x-8-cgaQ" target="_blank">Video on Bootstrapping</a></li>
-</ul>
-<p>
-<p><li> Friday: Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods</li>
-<ul>
-
-<p><li> <a href="https://youtu.be/7OdqoLOphTA" target="_blank">Video of lecture</a></li>
-</ul>
-<p>
+<p><li> Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression</li>
+<p><li> Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods</li>
 <p><li> Reading recommendations:
 <ol type="a"></li>
  <p><li> See lecture notes for week 37 on cross-validation and week 38 at <a href="https://compphysics.github.io/MachineLearning/doc/web/course.html." target="_blank"><tt>https://compphysics.github.io/MachineLearning/doc/web/course.html.</tt></a></li>
diff --git a/doc/pub/week38/html/week38-solarized.html b/doc/pub/week38/html/week38-solarized.html
index 5fc3f0c67..fe26ee152 100644
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+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
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@@ -244,7 +244,7 @@ MathJax.Hub.Config({
 
 <!-- ------------------- main content ---------------------- -->
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+<h1>Data Analysis and Machine Learning: Logistic Regression and Optimization</h1>
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@@ -260,7 +260,7 @@ MathJax.Hub.Config({
 </center>
 <br>
 <center>
-<h4>September 22 and 23</h4>
+<h4>Week 38</h4>
 </center> <!-- date -->
 <br>
 
@@ -268,16 +268,8 @@ MathJax.Hub.Config({
 <h2 id="plans-for-week-38">Plans for week 38 </h2>
 
 <ul>
-<li> Lab Wednesday and Thursday: work on project 1</li>
-<li> Thursday: Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression</li>
-<ul>
-  <li> <a href="https://youtu.be/sdt_BFla8uA" target="_blank">Video of lecture</a></li>
-  <li> <a href="https://www.youtube.com/watch?v=Xz0x-8-cgaQ" target="_blank">Video on Bootstrapping</a></li>
-</ul>
-<li> Friday: Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods</li>
-<ul>
-  <li> <a href="https://youtu.be/7OdqoLOphTA" target="_blank">Video of lecture</a></li>
-</ul>
+<li> Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression</li>
+<li> Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods</li>
 <li> Reading recommendations:
 <ol type="a"></li>
  <li> See lecture notes for week 37 on cross-validation and week 38 at <a href="https://compphysics.github.io/MachineLearning/doc/web/course.html." target="_blank"><tt>https://compphysics.github.io/MachineLearning/doc/web/course.html.</tt></a></li>
@@ -2290,7 +2282,7 @@ plt.show()
 
 <!-- ------------------- end of main content --------------- -->
 <center style="font-size:80%">
-<!-- copyright --> &copy; 1999-2022, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
+<!-- copyright --> &copy; 1999-2023, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
 </center>
 </body>
 </html>
diff --git a/doc/pub/week38/html/week38.html b/doc/pub/week38/html/week38.html
index 542bee19f..98139a3cf 100644
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-<title>Data Analysis and Machine Learning: Logistic Regression</title>
+<meta name="description" content="Data Analysis and Machine Learning: Logistic Regression and Optimization">
+<title>Data Analysis and Machine Learning: Logistic Regression and Optimization</title>
 <style type="text/css">
 /* bloodish style */
 body {
@@ -321,7 +321,7 @@ MathJax.Hub.Config({
 
 <!-- ------------------- main content ---------------------- -->
 <center>
-<h1>Data Analysis and Machine Learning: Logistic Regression</h1>
+<h1>Data Analysis and Machine Learning: Logistic Regression and Optimization</h1>
 </center>  <!-- document title -->
 
 <!-- author(s): Morten Hjorth-Jensen -->
@@ -337,7 +337,7 @@ MathJax.Hub.Config({
 </center>
 <br>
 <center>
-<h4>September 22 and 23</h4>
+<h4>Week 38</h4>
 </center> <!-- date -->
 <br>
 
@@ -345,16 +345,8 @@ MathJax.Hub.Config({
 <h2 id="plans-for-week-38">Plans for week 38 </h2>
 
 <ul>
-<li> Lab Wednesday and Thursday: work on project 1</li>
-<li> Thursday: Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression</li>
-<ul>
-  <li> <a href="https://youtu.be/sdt_BFla8uA" target="_blank">Video of lecture</a></li>
-  <li> <a href="https://www.youtube.com/watch?v=Xz0x-8-cgaQ" target="_blank">Video on Bootstrapping</a></li>
-</ul>
-<li> Friday: Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods</li>
-<ul>
-  <li> <a href="https://youtu.be/7OdqoLOphTA" target="_blank">Video of lecture</a></li>
-</ul>
+<li> Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression</li>
+<li> Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods</li>
 <li> Reading recommendations:
 <ol type="a"></li>
  <li> See lecture notes for week 37 on cross-validation and week 38 at <a href="https://compphysics.github.io/MachineLearning/doc/web/course.html." target="_blank"><tt>https://compphysics.github.io/MachineLearning/doc/web/course.html.</tt></a></li>
@@ -2367,7 +2359,7 @@ plt<span style="color: #666666">.</span>show()
 
 <!-- ------------------- end of main content --------------- -->
 <center style="font-size:80%">
-<!-- copyright --> &copy; 1999-2022, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
+<!-- copyright --> &copy; 1999-2023, Morten Hjorth-Jensen. Released under CC Attribution-NonCommercial 4.0 license
 </center>
 </body>
 </html>
diff --git a/doc/pub/week38/ipynb/ipynb-week38-src.tar.gz b/doc/pub/week38/ipynb/ipynb-week38-src.tar.gz
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diff --git a/doc/pub/week38/ipynb/week38.ipynb b/doc/pub/week38/ipynb/week38.ipynb
index a2f3e6d54..cdbf2529a 100644
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+++ b/doc/pub/week38/ipynb/week38.ipynb
@@ -2,49 +2,41 @@
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     "doconce format html week38.do.txt --no_mako -->\n",
-    "<!-- dom:TITLE: Data Analysis and Machine Learning: Logistic Regression -->"
+    "<!-- dom:TITLE: Data Analysis and Machine Learning: Logistic Regression and Optimization -->"
    ]
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    "cell_type": "markdown",
-   "id": "611a1193",
+   "id": "cc084164",
    "metadata": {
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    },
    "source": [
-    "# Data Analysis and Machine Learning: Logistic Regression\n",
+    "# Data Analysis and Machine Learning: Logistic Regression and Optimization\n",
     "**Morten Hjorth-Jensen**, Department of Physics and Center for Computing in Science Education, University of Oslo and Department of Physics and Astronomy and Facility for Rare Isotope Beams, Michigan State University\n",
     "\n",
-    "Date: **September 22 and 23**"
+    "Date: **Week 38**"
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "a8ce5806",
+   "id": "8bc0fe6f",
    "metadata": {
     "editable": true
    },
    "source": [
     "## Plans for week 38\n",
     "\n",
-    "* Lab Wednesday and Thursday: work on project 1\n",
+    "* Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression\n",
     "\n",
-    "* Thursday: Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression\n",
-    "\n",
-    "  * [Video of lecture](https://youtu.be/sdt_BFla8uA)\n",
-    "\n",
-    "  * [Video on Bootstrapping](https://www.youtube.com/watch?v=Xz0x-8-cgaQ)\n",
-    "\n",
-    "* Friday: Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods\n",
-    "\n",
-    "  * [Video of lecture](https://youtu.be/7OdqoLOphTA)\n",
+    "* Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods\n",
     "\n",
     "* Reading recommendations:\n",
     "\n",
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@@ -129,7 +121,7 @@
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@@ -142,7 +134,7 @@
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@@ -155,7 +147,7 @@
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@@ -179,7 +171,7 @@
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@@ -189,7 +181,7 @@
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@@ -202,7 +194,7 @@
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+   "id": "3ed99c16",
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@@ -214,7 +206,7 @@
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@@ -226,7 +218,7 @@
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@@ -338,7 +330,7 @@
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@@ -440,7 +432,7 @@
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@@ -462,7 +454,7 @@
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@@ -567,7 +559,7 @@
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@@ -585,7 +577,7 @@
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@@ -596,7 +588,7 @@
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@@ -623,7 +615,7 @@
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@@ -636,7 +628,7 @@
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@@ -701,7 +693,7 @@
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@@ -714,7 +706,7 @@
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@@ -733,7 +725,7 @@
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@@ -744,7 +736,7 @@
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@@ -756,7 +748,7 @@
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@@ -775,7 +767,7 @@
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@@ -797,7 +789,7 @@
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@@ -809,7 +801,7 @@
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@@ -819,7 +811,7 @@
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@@ -832,7 +824,7 @@
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@@ -897,7 +889,7 @@
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@@ -909,7 +901,7 @@
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@@ -924,7 +916,7 @@
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@@ -936,7 +928,7 @@
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@@ -948,7 +940,7 @@
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@@ -965,7 +957,7 @@
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@@ -979,7 +971,7 @@
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@@ -989,7 +981,7 @@
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@@ -1001,7 +993,7 @@
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@@ -1013,7 +1005,7 @@
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@@ -1025,7 +1017,7 @@
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@@ -1036,7 +1028,7 @@
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@@ -1048,7 +1040,7 @@
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@@ -1059,7 +1051,7 @@
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@@ -1075,7 +1067,7 @@
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@@ -1087,7 +1079,7 @@
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@@ -1097,7 +1089,7 @@
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@@ -1109,7 +1101,7 @@
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@@ -1124,7 +1116,7 @@
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@@ -1136,7 +1128,7 @@
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@@ -1147,7 +1139,7 @@
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@@ -1159,7 +1151,7 @@
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@@ -1171,7 +1163,7 @@
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@@ -1183,7 +1175,7 @@
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@@ -1193,7 +1185,7 @@
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@@ -1205,7 +1197,7 @@
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@@ -1219,7 +1211,7 @@
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@@ -1231,7 +1223,7 @@
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@@ -1241,7 +1233,7 @@
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@@ -1253,7 +1245,7 @@
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@@ -1263,7 +1255,7 @@
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@@ -1275,7 +1267,7 @@
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@@ -1286,7 +1278,7 @@
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@@ -1309,7 +1301,7 @@
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@@ -1321,7 +1313,7 @@
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@@ -1331,7 +1323,7 @@
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@@ -1343,7 +1335,7 @@
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@@ -1360,7 +1352,7 @@
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@@ -1370,7 +1362,7 @@
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@@ -1389,7 +1381,7 @@
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@@ -1444,7 +1436,7 @@
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@@ -1456,7 +1448,7 @@
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@@ -1471,7 +1463,7 @@
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@@ -1524,7 +1516,7 @@
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@@ -1539,7 +1531,7 @@
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@@ -1559,7 +1551,7 @@
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@@ -1613,7 +1605,7 @@
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@@ -1628,7 +1620,7 @@
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@@ -1655,7 +1647,7 @@
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@@ -1669,7 +1661,7 @@
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@@ -1714,7 +1706,7 @@
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@@ -1739,7 +1731,7 @@
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@@ -1751,7 +1743,7 @@
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@@ -1762,7 +1754,7 @@
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@@ -1774,7 +1766,7 @@
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@@ -1787,7 +1779,7 @@
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@@ -1798,7 +1790,7 @@
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@@ -1841,7 +1833,7 @@
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@@ -1862,7 +1854,7 @@
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@@ -1879,7 +1871,7 @@
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@@ -1894,7 +1886,7 @@
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@@ -1904,7 +1896,7 @@
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@@ -1920,7 +1912,7 @@
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@@ -1932,7 +1924,7 @@
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@@ -1943,7 +1935,7 @@
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@@ -1955,7 +1947,7 @@
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@@ -1965,7 +1957,7 @@
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@@ -1979,7 +1971,7 @@
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@@ -1991,7 +1983,7 @@
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@@ -2001,7 +1993,7 @@
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@@ -2013,7 +2005,7 @@
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@@ -2025,7 +2017,7 @@
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@@ -2045,7 +2037,7 @@
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@@ -2061,7 +2053,7 @@
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@@ -2077,7 +2069,7 @@
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@@ -2088,7 +2080,7 @@
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@@ -2100,7 +2092,7 @@
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@@ -2110,7 +2102,7 @@
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@@ -2122,7 +2114,7 @@
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@@ -2132,7 +2124,7 @@
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@@ -2144,7 +2136,7 @@
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@@ -2166,7 +2158,7 @@
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@@ -2179,7 +2171,7 @@
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@@ -2192,7 +2184,7 @@
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@@ -2202,7 +2194,7 @@
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@@ -2220,7 +2212,7 @@
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@@ -2230,7 +2222,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1c535fd6",
+   "id": "9853de9e",
    "metadata": {
     "editable": true
    },
@@ -2245,7 +2237,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "11de1257",
+   "id": "f233f7de",
    "metadata": {
     "editable": true
    },
@@ -2255,7 +2247,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "dcebe4b0",
+   "id": "bc6f3b06",
    "metadata": {
     "editable": true
    },
@@ -2269,7 +2261,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e64184d6",
+   "id": "dc4a3cc1",
    "metadata": {
     "editable": true
    },
@@ -2279,7 +2271,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e593fdec",
+   "id": "08f2c16f",
    "metadata": {
     "editable": true
    },
@@ -2293,7 +2285,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "20aa2562",
+   "id": "cf0cdec1",
    "metadata": {
     "editable": true
    },
@@ -2308,7 +2300,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "f517e5e1",
+   "id": "09331364",
    "metadata": {
     "editable": true
    },
@@ -2325,7 +2317,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "3cb0ab6d",
+   "id": "e33f82e0",
    "metadata": {
     "editable": true
    },
@@ -2337,7 +2329,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "25679ba7",
+   "id": "66f63143",
    "metadata": {
     "editable": true
    },
@@ -2351,7 +2343,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "71de6599",
+   "id": "f142b72d",
    "metadata": {
     "editable": true
    },
@@ -2366,7 +2358,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "5dc34c7a",
+   "id": "4eabd571",
    "metadata": {
     "editable": true
    },
@@ -2378,7 +2370,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "c621dec2",
+   "id": "ffe4b219",
    "metadata": {
     "editable": true
    },
@@ -2389,7 +2381,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "04f46782",
+   "id": "94227387",
    "metadata": {
     "editable": true
    },
@@ -2417,7 +2409,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "95dedf75",
+   "id": "f9c9acca",
    "metadata": {
     "editable": true
    },
@@ -2439,7 +2431,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "58b9a1d8",
+   "id": "34076369",
    "metadata": {
     "editable": true
    },
@@ -2461,7 +2453,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b10f43aa",
+   "id": "98b8ba57",
    "metadata": {
     "editable": true
    },
@@ -2473,7 +2465,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e9f0af64",
+   "id": "4023c65f",
    "metadata": {
     "editable": true
    },
@@ -2510,7 +2502,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "aa712729",
+   "id": "a156eb65",
    "metadata": {
     "editable": true
    },
@@ -2538,7 +2530,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "52e7c59f",
+   "id": "1685e3a9",
    "metadata": {
     "editable": true
    },
@@ -2568,7 +2560,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "593c68ce",
+   "id": "1e235b14",
    "metadata": {
     "editable": true
    },
@@ -2592,7 +2584,7 @@
   {
    "cell_type": "code",
    "execution_count": 13,
-   "id": "e36bcca7",
+   "id": "423023b6",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2605,7 +2597,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "69515af1",
+   "id": "7d3e4e87",
    "metadata": {
     "editable": true
    },
@@ -2616,7 +2608,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "276fa711",
+   "id": "7aef491e",
    "metadata": {
     "editable": true
    },
@@ -2628,7 +2620,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ac536ef4",
+   "id": "56b39a11",
    "metadata": {
     "editable": true
    },
@@ -2638,7 +2630,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "83fb4d48",
+   "id": "3b8e0359",
    "metadata": {
     "editable": true
    },
@@ -2650,7 +2642,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4c9daea7",
+   "id": "f91a1970",
    "metadata": {
     "editable": true
    },
@@ -2664,7 +2656,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2e19aed3",
+   "id": "da15de65",
    "metadata": {
     "editable": true
    },
@@ -2680,7 +2672,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "301f952d",
+   "id": "86e6e217",
    "metadata": {
     "editable": true
    },
@@ -2690,7 +2682,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "b0b74f0b",
+   "id": "c400a0bd",
    "metadata": {
     "editable": true
    },
@@ -2702,7 +2694,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2df6a47e",
+   "id": "d4610f23",
    "metadata": {
     "editable": true
    },
@@ -2712,7 +2704,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0e074abe",
+   "id": "36e72a73",
    "metadata": {
     "editable": true
    },
@@ -2724,7 +2716,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "37ae56ec",
+   "id": "2692f00b",
    "metadata": {
     "editable": true
    },
@@ -2738,7 +2730,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ee992f83",
+   "id": "53ebc94f",
    "metadata": {
     "editable": true
    },
@@ -2748,7 +2740,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "8e90490b",
+   "id": "400fda22",
    "metadata": {
     "editable": true
    },
@@ -2759,7 +2751,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "1bdad037",
+   "id": "ecbbb87d",
    "metadata": {
     "editable": true
    },
@@ -2774,7 +2766,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0a47bdec",
+   "id": "c1ce606a",
    "metadata": {
     "editable": true
    },
@@ -2784,7 +2776,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "d23e8493",
+   "id": "79990fcc",
    "metadata": {
     "editable": true
    },
@@ -2796,7 +2788,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "0adab660",
+   "id": "c54a5590",
    "metadata": {
     "editable": true
    },
@@ -2808,7 +2800,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "a8a5f2dc",
+   "id": "95525efc",
    "metadata": {
     "editable": true
    },
@@ -2823,7 +2815,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "7ba3ee87",
+   "id": "96669463",
    "metadata": {
     "editable": true
    },
@@ -2836,7 +2828,7 @@
   {
    "cell_type": "code",
    "execution_count": 14,
-   "id": "6b2468a8",
+   "id": "5ac472e8",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2893,7 +2885,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e685e839",
+   "id": "aaa15f21",
    "metadata": {
     "editable": true
    },
@@ -2904,7 +2896,7 @@
   {
    "cell_type": "code",
    "execution_count": 15,
-   "id": "4442c99c",
+   "id": "5db63ee4",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -2931,7 +2923,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ac26dfe4",
+   "id": "72dd040a",
    "metadata": {
     "editable": true
    },
@@ -2943,7 +2935,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "31ef09be",
+   "id": "9d82f262",
    "metadata": {
     "editable": true
    },
@@ -2955,7 +2947,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "56a3ffc2",
+   "id": "c3ddb9a4",
    "metadata": {
     "editable": true
    },
@@ -2965,7 +2957,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "afc07c7c",
+   "id": "8cb6e70e",
    "metadata": {
     "editable": true
    },
@@ -2979,7 +2971,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "4344f9af",
+   "id": "6b1d7d8a",
    "metadata": {
     "editable": true
    },
@@ -2989,7 +2981,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "cd1e2bc1",
+   "id": "1f8b03a4",
    "metadata": {
     "editable": true
    },
@@ -3001,7 +2993,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "e14a1bf4",
+   "id": "8e0dadf7",
    "metadata": {
     "editable": true
    },
@@ -3012,7 +3004,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "11fffb8f",
+   "id": "9ecbd226",
    "metadata": {
     "editable": true
    },
@@ -3027,7 +3019,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "2e18cb7b",
+   "id": "2a337d25",
    "metadata": {
     "editable": true
    },
@@ -3041,7 +3033,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "990e0fa6",
+   "id": "1c5342e5",
    "metadata": {
     "editable": true
    },
@@ -3052,7 +3044,7 @@
   {
    "cell_type": "code",
    "execution_count": 16,
-   "id": "a7a87cc2",
+   "id": "067ba195",
    "metadata": {
     "collapsed": false,
     "editable": true
@@ -3113,7 +3105,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "ea03b76e",
+   "id": "e8fec18e",
    "metadata": {
     "editable": true
    },
@@ -3135,7 +3127,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "9514dfc8",
+   "id": "9174bb05",
    "metadata": {
     "editable": true
    },
diff --git a/doc/src/week38/week38.do.txt b/doc/src/week38/week38.do.txt
index 552986014..4eebb1447 100644
--- a/doc/src/week38/week38.do.txt
+++ b/doc/src/week38/week38.do.txt
@@ -1,6 +1,6 @@
-TITLE: Data Analysis and Machine Learning: Logistic Regression
+TITLE: Data Analysis and Machine Learning: Logistic Regression and Optimization
 AUTHOR: Morten Hjorth-Jensen {copyright, 1999-present|CC BY-NC} at Department of Physics and Center for Computing in Science Education, University of Oslo & Department of Physics and Astronomy and Facility for Rare Isotope Beams, Michigan State University
-DATE: September 22 and 23
+DATE: Week 38
 
 
 
@@ -9,12 +9,8 @@ DATE: September 22 and 23
 !split
 ===== Plans for week 38 =====
 
-* Lab Wednesday and Thursday: work on project 1
-* Thursday: Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression
-  * "Video of lecture":"https://youtu.be/sdt_BFla8uA"
-  * "Video on Bootstrapping":"https://www.youtube.com/watch?v=Xz0x-8-cgaQ"
-* Friday: Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods
-  * "Video of lecture":"https://youtu.be/7OdqoLOphTA"
+* Summary of regression methods, cross-validation  and discussion of project 1.  Start Logistic Regression
+* Classification problems and Logistic Regression, from binary cases to several categories. Start optimization methods
 
 * Reading recommendations:
   o See lecture notes for week 37 on cross-validation and week 38 at https://compphysics.github.io/MachineLearning/doc/web/course.html.