Hi Michael, In a TProfile, empty bins are not drawn. Could you send me an example (script, file.root,??) showing this problem? Note that there is always a problem with bins having one entry only or bins having always the same value. See discussion in class TProfile http://root.cern.ch/root/htmldoc/TProfile.html#TProfile:BuildOptions http://root.cern.ch/root/htmldoc/src/TProfile.cxx.html#TProfile:GetBinError http://root.cern.ch/root/htmldoc/TProfile.html#TProfile:Approximate Rene Brun "K.-Michael Aye" wrote: > > Hi! > > I plot data over a longer period of time with TProfile, but sometimes > there is no data, so these bins are not filled. > Empty Bins are Draw()n with a zero in it, but sometimes the measured > value is also zero, which makes it impossible to distuingish between > times when there is no data and times when a zero has been measured. > > Is there a way to leave empty bins really empty in the plot with TProfile? > > Thanks, > Michael > -- > K.-Michael Aye, University of Durham, Dept. of Physics > Phone@Work: +44-191-334-3665, Fax@Work: +44-191-334-3521 > "Because the exploration of space knows no national boundaries, > the loss of the Columbia is a loss to all humankind!"(Kofi Annan)
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