Well, in this case, you have to
-create a new histogram with the right limits in X_t
- loop on the original histogram bins
- getting the bin content
- computing the new bin in the new histogram
- call SetBinContent(newbin,bincontent)
You must be careful with bin edge effects. A reason to start from the
original data (Tree or..) instead of the above procedure.
Rene Brun
Anufriev Sergey Valentinovich wrote:
>
> But, in fact E_t is the XAxis. And I need XAxis will be X_t. I need not
> to normalize my histogram.
>
> > Hi Sergey,
> >
> > Having TH1D* h, do
> > h->Scale(2/sqrt(s));
> >
> > see also TH1::DrawNormalized
> >
> > Rene Brun
> >
> > Anufriev Sergey Valentinovich wrote:
> > >
> > > Dear ROOTers!
> > >
> > > I have the next problem: I can draw TH1D which shows dependense CROSS
> > > SECTION (E_transeverse), but in fact I need histogram CROSS
> > > SECTION(X_transeverse), where X_transeverse=2*E_transeverse/SQRT(s) (just
> > > one can say X_t=f(E_t)). Question is: how can I get it?
> > >
> > > Thank you in advance, Sergey.
> >
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