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####################################################################################################### Code developed by: Alfredo Gurrola (Vanderbilt), Andres Florez (Los Andes), Amandeep Kalsi (Panjab) #######################################################################################################

In order to use the checkout and use the code, follow these steps:

1. You need to work at the SLC6 area.

   1.1 If you are working from the LPC cluster, you need to do the following:
   source /cvmfs/cms.cern.ch/cmsset_default.csh
   setenv SCRAM_ARCH slc6_amd64_gcc491

2. set the CMSSW release: cmsrel CMSSW_7_4_7

3. cd CMSSW_7_4_7/src

4. cmsenv

5. Install and compile the code to use the PAT-electron ID:

5.1 git cms-merge-topic ikrav:egm_id_747_v2
5.2 scram b -j 10

6. Get the NTupleMaker code and compile it:

6.1 git clone https://github.com/florez/NtupleMaker_740
6.2 mv NtupleMaker_740 NtupleMaker
6.3 scram b -j 10

7. Get the Analyzer code and compile it (code that performs the analysis and produces histograms):

7.1 git clone https://github.com/gurrola/Analyzer
7.2 scram b -j 10

8. cd into the appropriate NtupleMaker directory to start running the code:

9.1 cd NtupleMaker/BSM3G_TNT_Maker/python

9. Copy a test input miniAOD root file from gurrola's area (or your own):

// FROM VANDERBILT:
10.1 cp /home/gurrola/mini_AODSIM.root .
// FROM LPC:
10.1 cp /uscms/home/florez/mini_AODSIM.root .
10. Run the NtupleMaker code:

10.1 cmsRun miniAOD_747_50ns.py

11. cd into the appropriate Analyzer directory to start running the code:

11.1 cd Analyzer/BSM3G_TNT_MainAnalyzer/

12. Copy a the Ntuple root file from step 10 and compile the code:

12.1 cp $CMSSW_BASE/src/NtupleMaker/BSM3G_TNT_Maker/python/OutTree.root .
12.2 make clean
12.3 make BSM3GAnalyzer

13. Run the analyzer code and inspect the output root file:

13.1 ./BSM3GAnalyzer OutTree.root analysis.root
13.2 root -l analysis.root

14. To run multiple files at LPC using CONDOR, please go to this link and follow the instructions:
    https://github.com/florez/CONDOR
    Please make sure to read carefully the scripts to understand how to configure the code.
    if you have questions, please contact Andres Florez.
    

15. Use the Plotter code and output from running the analyzer to produce plots and a cut flow eff table:

16.1 cd ../../Plotter/TNTCode/
16.2 cp ../../Analyzer/BSM3G_TNT_MainAnalyzer/analysis.root Data
16.3 cp ../../Analyzer/BSM3G_TNT_MainAnalyzer/analysis.root DYMuMu
16.4 root -l -b main.C

16. Inspect the output root file:

16.1 root -l Plots_Rebin1.root