Hi Mariusz,
I do not understand what you want to do:
- create a new profile?
-make a projection of a 2-d histogram into a profile?
To create a new TProfile, see tutorial hsimple.C
To make a projection of a 2-d histogram into a profile, do,eg:
TH2F *yShape04 = new TH2F("yShape04","yShape04",nbin3,
minbin3y,maxbin3y, 200, 0, 30);
TProfile *yShp04 = yShape04->ProfileX("yShp04",0,200);
Rene Brun
On Thu, 24
Jul 2003,
Mariusz
Sapinski wrote:
>
> Hello,
> I would like to have a profile of histogram with a given number of bins
> Nbin.
>
> If i do just:
> TProfile *yShp04 = yShape04->ProfileX("yShp04",0,200);
>
> then i get 35 bins (how this default is calculated?)
> (while
> TH2F *yShape04 = new TH2F("yShape04","yShape04",nbin3, minbin3y,maxbin3y, 200, 0, 30);
> )
>
> I tried to do:
>
> TProfile *yShp04 = new TProfile("yShp04","yShp04",50,-35.,0.,"");
> yShp04 = yShape04->ProfileX("yShp04",0,200);
>
> but this doesn't work as i want. What is wrong?
>
>
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