> > 1. I predefined my y-bins myself. Some of these y-bins are very narrow, > > compared to others, which results in a plot with these bins that are > > almost impossible to see. > > Is it not possible to make a Y-axis with instead of the "real" valuse, > > the "bin numbers"? This would allow me to see bins that have very > > narrow widths on a "normal scaled axis". > > There is a contradiction in your request. Why don'y you fill your Profile > with the variable being the bin number instead of the real value? What I do now is the following Double_t tphot_bins[51] = { ...some values...}; hz100 = new TProfile2D("hz100","...",19,-5,185,50,tphot_bins); z100->Draw("abs(rel_error):t_phot:theta >> hz100","prob*flux"); How can I extract the binnumber during the z100->Draw("abs(rel_error):t_phot:theta >> hz100","prob*flux") ??? Is there something like z100->Draw("abs(rel_error):t_phot.binnumber:theta >> hz100","prob*flux") ?? > > 2. How can I define a range for the colorlevel in the TProfile2D? I mean, > > I want to compare the Z-values for 2 different datasets, and this would > > be much easier if I could make the Z-axis scale (the colorlevel) the > > same for both of them. > > see TH2::SetContour > ok. I also found SetMaximum/SetMinimum which answers my question daan
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