On Fri, 11 Apr 1997, Ivan So wrote: > A useful construct in using Draw is: > > ntuple->Draw("z:x:y","z < maxz && z > minz", ...) > > where maxz and minz are general constants computed in an interactive root > session. The maxz and minz may depend on the data in ntuple and > other functions. > > How can we accomplish this with all our data in ntuple? > > Ivan > so@bnl.gov > > You can do it this way: Char_t Cuts[80]; Float_t maxz = ntuple->GetMaximum("z") - 50; Float_t minz = ntuple->GetMinimum("z") + 50; sprintf(Cuts,"z < %f && z > %f", maxz, minz); ntuple->Draw("z:x:y",Cuts); Christian --- Christian Bormann bormann@ikf.uni-frankfurt.de
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