Dear Rene Since I am just writing my own methods to draw graphs, hists, e.g. MyClass::DrawGraph(Int_t n, Double_t *X, const char *logbase) where logbase can be: "0", "ln", "log2", "log10" I have currently to convert array X to log values myself. Is there a simple way to force the axes to display values as log scale (when I supply the min and max vlaues for the axes)? Thank you Christian _._._._._._._._._._._._._._._._ C.h.i.s.t.i.a.n S.t.r.a.t.o.w.a V.i.e.n.n.a A.u.s.t.r.i.a _._._._._._._._._._._._._._._._ Rene Brun wrote: > Hi Tuan, > > You do not draw a TH1 in log scale, but rather draw a TH1 > in a pad for which you have selected the log scale (in x or/and y). > See TPad::SetLogy > or do it interactively with the mouse by clicking in the pad area > with the right mouse button and select the SetLogy item. > > Rene Brun > > > On Tue, 26 Nov 2002, Vu Anh Tuan wrote: > > >>A stupid question: how can we draw a TH1F histogram in log scale? >> >>Thanks, >> >>Tuan >>k >> >> > > >
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