Revision f954f663b26b8ea4c67ef1893405e31bbd64435f authored by Rene Brun on 16 December 2002, 20:29:07 UTC, committed by Rene Brun on 16 December 2002, 20:29:07 UTC
TH1 *TH1::GetAsymmetry(TH1* h2, Double_t c2, Double_t dc2) // return an histogram containing the asymmetry of this histogram with h2, // where the asymmetry is defined as: // // Asymmetry = (h1 - h2)/(h1 + h2) where h1 = this // // works for 1D, 2D, etc. histograms // c2 is an optional argument that gives a relative weight between the two // histograms, and dc2 is the error on this weight. This is useful, for example, // when forming an asymmetry between two histograms from 2 different data sets that // need to be normalized to each other in some way. The function calculates // the errors asumming Poisson statistics on h1 and h2 (that is, dh = sqrt(h)). // // example: assuming 'h1' and 'h2' are already filled // // h3 = h1->GetAsymmetry(h2) // // then 'h3' is created and filled with the asymmetry between 'h1' and 'h2'; // h1 and h2 are left intact. // // Note that it is the user's responsibility to manage the created histogram. git-svn-id: http://root.cern.ch/svn/root/trunk@5818 27541ba8-7e3a-0410-8455-c3a389f83636
1 parent d8e0d65
File | Mode | Size |
---|---|---|
TAlien.cxx | -rw-r--r-- | 13.6 KB |
TAlienAttrResult.cxx | -rw-r--r-- | 3.0 KB |
TAlienResult.cxx | -rw-r--r-- | 2.6 KB |
Computing file changes ...