Hi Greg,
Your macro works correctly for me. What is your problem?
Rene Brun
Gregory Novak wrote:
>
> I want to do a fit to a function and then pluck the function from the
> TGraph object. I have the following macro, which shows that "func"
> doesn't point to anything.
>
> I managed to get a hold of the object through GetListOfFunctions, and
> found that the function does in fact think it's name is "pol2". So what's
> wrong with this code?
>
> {
> Float_t x[] = {1,2,3};
> Float_t y[] = {1,4,9};
> TGraph *tg=new TGraph(3,x,y);
> tg->Fit("pol2");
> tg->Draw("AL*");
> TF1 *func;
> func=tg->GetFunction("pol2");
> cout << func << endl;
> }
>
> Thanks,
> Greg
This archive was generated by hypermail 2b29 : Tue Jan 01 2002 - 17:50:38 MET