Class Description

____________________ 

TCounterCol

Created at UNH by Maurik Holtrop.

This class is derived from TObjArray and extended to conveniently store a set of TCounter objects. This makes it easier to keep track of how many times a particular cut passed or failed in your data analysis. Sure, there are other ways to count, but this class can simplify your code.

The strength of using this class is that you can write out the results to a root file together with your histograms, and thus keep track of your analysis better. The ease of storing the results in this way is what makes this class worth using.

How to use:

In your analysis routine, create a new TCounterCol, and setup the counters:

TCounterCol col;
cGoode=col.AddCounter("Good Electron");
cGoodp=col.AddCounter("Good Proton");
cGoodpi=col.AddCounter("Good Pion");
...
... // Start the event loop.
...
for(iEvent=0;iEvent<AllEvents;iEvent++){  
   if(col.Test(MyGoodElectronTest(),cGoode)){
     ... Do what you wanted to do with a good electron.
   }

   if(MyGoodProtonTest()){
     col.True(cGoodp);
     // Do good proton stuff.
  }else{
     col.False(cGoodp);
     // Do bad proton stuff.
   }
...
...
}
...
col.Print(); // Print out the contents of counters.
col.Write(); // Write the counters to your open histogram file.
f.Close();   // Close the file.

Additional information about this package, including an overview, can be found at the
ClasTool Documentation web pages.

 
 
   

 Reset all counters.

 Set the Titles of each counter to reflect the
 current count.
 This is called before writing this object to file
 so that an "ls" or "browse" on the object reflects
 the correct numbers.

 Print the conteds of each counter.

 Browse the tables

 Count a specific test (true/false), and pass back test.

 Count the opposite of test, and pass back test.