Making analysis code with the HarpoAnalysis class

The HarpoAnalysis class is the base class to process data event by event. It has three main functions:

Init()

This is run at the beginning of the analysis. You typically initialize histograms and counters there.

process()

This is where the actual data processing is done. HarpoEvent* fEvt contains the aggregated data from all the detectors included (Feminos X, Y, PMm2, ...) for a single event (already synchronized).

Save()

This is run at the end of the analysis. You can do some final processing there. You will also explicitly save your output histograms in a file defined with the -b option (see section 2.2).

A template analysis class HarpoAnalysisTemplate exists. The makeNewAnalysis.sh script allows to generate a copy of the template with all the required files and modifications to Makefile and harpoanalysis.cxx.

./makeNewAnalysis.sh Name
ls HarpoAnalysisName*
  HarpoAnalysisName.cxx
  HarpoAnalysisName.h
  HarpoAnalysisNameLinkDef.h