run/util.C

From: Chris Crawford (chris2@lns.mit.edu)
Date: Tue Jun 11 2002 - 13:24:06 EDT


hi blasters,
  i checked in a small utility macro `run/util.C' with functions for
- scaling histograms from ntuples
- printing vectors and matrices

here is an example from reconPlot.C of how to use it:

    gROOT->ProcessLine(".L util.C");
    .....
    TNtuple* etuple;
    TH1F zhist("zhist", "% Error in Z0", bins,-0.75,0.75);
    char* plot="(z-mcz)/mcz*100>>zhist";
    if (scale) scalehist(etuple, &zhist, plot);
    etuple->Draw(plot);

--chris



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