Gabriele Cosmo
58 lines
1013 B
Python
58 lines
1013 B
Python
#!/usr/bin/python
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from ROOT import *
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from array import array
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gROOT.Reset()
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input_file_1=TFile('test35a.root','READ')
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input_file_2=TFile('test35b.root','READ')
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#input_file_1.cd()
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#h_1_1 = input_file_1.Get("h16")
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c1 = TCanvas('c1', 'test35', 200, 10, 700, 500)
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c1.SetGridx()
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c1.SetGridy()
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c1.SetLogx()
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c1.SetLogy()
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# histogram for energy spectra
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n = 41
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bin = array( 'f' )
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for i in range( n ):
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bin.append(pow(10,(-2+0.1*i)))
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#
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h_1 = TH1F('unbiased','Source Spectrum',40,bin)
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h_2 = TH1F('biased','Source Spectrum',40,bin)
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#
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input_file_1.cd()
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# get the tuple t1
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t1 = gROOT.FindObject('MyTuple')
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for i in range(t1.GetEntries()):
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t1.GetEntry(i)
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h_1.Fill(t1.Energy,t1.Weight)
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input_file_2.cd()
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# get the tuple t1
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t1 = gROOT.FindObject("MyTuple")
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for i in range(t1.GetEntries()):
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t1.GetEntry(i)
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h_2.Fill(t1.Energy,t1.Weight)
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h_2.SetLineStyle(kDashed);
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h_2.SetLineColor(kBlue);
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h_2.Draw();
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h_1.Draw("same") ;
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c1.Update()
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c1.Print("./test35.png")
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input_file_1.Close()
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input_file_2.Close()
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