====== Nima's HLT boosted jet authorship project ======


===== How to setup the code I use on lxplus =====


**1. Setup RootCore and checkout the packages**

I created all of my analysis codes at the work area (not home) on lxplus where I keep all of required data for my analysis. 

One can get my package using **svn co** as follows: ''svn co $SVNINST/Institutes/Carleton/HLT_JetTrigger
''

At the work area, first I should bring up ATLAS software using following command :
''setupATLAS''

For the first time, I needed to install //RootCore// Packages using: 
''rcSetup Base,2.4.3'' ;for the next time only ''rcSetup'' is required.

Every time I add a new package to my header file, I should make it available for my code by typing : 
''rc find_pacakges'' 


Before running my code, I should compile it using : 
''rc compile''

**2. How to run the validation of the HLT jet building. This produces histgorams of the Reconstructed jets** 


I created a macro called //run.cxx// where I used //Samplerhandler// tool which is very useful for organizing input and output files. This macro is located at //macro// directory. To run my code, following command is required at //macro// directory : 

''root -l '$ROOTCOREDIR/scripts/load_packages.C' 'run.cxx ("run_result")'''

Using this command, my code will be running at //root// and all of the output files (histograms) can be found at //run_result// directory. 

**3. How to make nice plots of the produced histograms**


**Dag's test of the code**
Logging in to lxplus, I do:

  setupATLAS
  cd /tmp/$USER
  rcSetup Base,2.4.8
  svn co svn+ssh://svn.cern.ch/reps/atlasinst/Institutes/Carleton/HLT_JetTrigger
  rc find_packages
  rc compile

Compilation was successful! Now, let's try to run it

  cd HLT_JetTrigger/macros/
  root -b $ROOTCOREDIR/scripts/load_packages.C 'run.cxx("hlt_results")'