mayer@ik1.fzk.de wrote: > > Dear rooters > > I tried to fill a profile histogram via TTree::Draw, however the profile > histogram is being erased and replaced by an ordinary 2d histo. I tried > > root [9] hprof = new TProfile("hprof","edtarr vs logSize",100,3.,7.,0.8,4.5); > root [10] h3.Draw("log10(edtarr):log10(Size)>>hprof",cStd+crad90); > Warning in <TTree::Draw>: Deleting old histogram with different dimensions > root [11] delete hprof; > root [12] hprof = new TProfile("hprof","edtarr vs logSize",100,3.,7.,0.8,4.5); > root [13] h3.Draw("log10(edtarr):log10(Size)>>+hprof",cStd+crad90); > Warning in <TTree::Draw>: Deleting old histogram with different dimensions > > but both did not work. What is wrong? > Regards > Hajo With the current version 2.00/09, you must specify the option=prof to generate a profile histogram, eg: h3.Draw("log10(edtarr):log10(Size)>>hprof",cStd+crad90,"prof"); I have update the development version to not require this option in case the specified output object is a TProfile as in your case. Rene Brun
This archive was generated by hypermail 2b29 : Tue Jan 04 2000 - 00:34:35 MET