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snowmass2013:analyse_d3 [2013/06/01 02:48]
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 [[snowmass2013:montecarlo| <<back]] [[snowmass2013:montecarlo| <<back]]
  
-=== How to analyze in C++ ===+==== How to analyze in C++ ====
  
 This example shows how to run a program over all files in a certain directory, fill histograms (pT and jet mass) and This example shows how to run a program over all files in a certain directory, fill histograms (pT and jet mass) and
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-=== Advanced  Delphes3 example  ===+==== Advanced C++ example  ====
  
 This assumes that Delphes3 is already installed. You have the directory "Delphes3" with the shared file "libDelphes.so" inside. This assumes that Delphes3 is already installed. You have the directory "Delphes3" with the shared file "libDelphes.so" inside.
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 But before you do this, you will need to set "DATA_DIR" variable inside "A_RUN_TEST" to navigate to the directory with your "ROOT" files. But before you do this, you will need to set "DATA_DIR" variable inside "A_RUN_TEST" to navigate to the directory with your "ROOT" files.
  
-=== How to analyze in PyROOT ===+==== How to analyze in PyROOT ====
  
-If ROOT was compiled using "python" option, you can use PyROOT to loop over events. Here is a small example to plot transverse moment of electrons (based on the original code of Peter Onyisi with some modifications):+If ROOT was compiled using "python" option, you can use PyROOT to loop over events. Here is a small example to plot transverse moment of electrons (based on the original code of Peter Onyisi, with some modifications, see 
 +[[https://indico.cern.ch/getFile.py/access?contribId=5&resId=0&materialId=slides&confId=255032| his talk]]):
  
-<code python>+<code python test.py>
 #!/usr/bin/env python #!/usr/bin/env python
 # Based on P.Onyisi example # Based on P.Onyisi example
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 t=f.Delphes # extract the tree t=f.Delphes # extract the tree
 h=TH1D('ele','Electron #eta',8,-4,4) # initialize a histogram h=TH1D('ele','Electron #eta',8,-4,4) # initialize a histogram
-c=TCanvas() # build a canvas+c1=TCanvas() # build a canvas
  
 n=0 n=0
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 if (raw_input("Press any key to exit") != "-9999"): if (raw_input("Press any key to exit") != "-9999"):
     c1.Close(); sys.exit(1);     c1.Close(); sys.exit(1);
 +</code>
  
 +Run this code as: 
 +<code>
 +python test.py file.root
 </code> </code>
  
 +You will see this image:
 +{{:snowmass2013:screenshot_from_2013-05-31_21_55_04.png?200|}}
 +
 +====How to analyze in Java====
 +
 +MC truth information and most of ROOT files with Delphes outputs
 + are stored in the PROMC file format which can be analyzed on any platform.
 +Read this [[snowmass2013:analyse_d36_promc| this section]].
  
  --- //[[[email protected]|Sergei Chekanov]] 2013/03/13 10:23//  --- //[[[email protected]|Sergei Chekanov]] 2013/03/13 10:23//
  
  
snowmass2013/analyse_d3.txt · Last modified: 2014/04/24 01:51 (external edit)

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