Norbert Danneberg wrote: > > Hi Rooters, > > how is the number of entries in two dimensional Histograms claculated ? > When I book two different two-dimensional histos of TH2F, lets say > > TH2F* Track2DHist = new TH2F("Track2DHist", > HistTitle, > 70,-70,70,70,-70,70); > > TH2F* Track2DHist2 = new TH2F("Track2DHist2", > HistTitle, > 70,-3,3,70,-3,3); > > , they both contain the same number of entries although the > distribution is gaussian and in the second case only a few should be > left over. > This is the expected behaviour. The reported number of entries via TH1::GetEntries correspond to the number of Fill calls including underflows and overflows. Rene Brun
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