Hi , I used the profile option a lot yesterday and I encountered some crashes which I don't understand at all. I have an ascii file which has x and y values (both have format 'real'). The x-values range from -200.to 200. Now I want to generate some profile plots and therefore I do the following: Root> ntuple->Draw("y:abs(x)>>hprof","x>0","prof"); ---> works fine Root> ntuple->Draw("y:abs(x)>>hprof","x>67","prof"); ---> works fine Root> ntuple->Draw("y:abs(x)>>hprof","x>68","prof"); ---> floating point exception (I also get often a 'floating point exception' when I use intervalls such as 'x>10 && x<40') I tried to define 'hprof' first, but nothing helped. Otherwise things work fine so far. Wolfgang
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