TGraph and TSpline

Hello,
I would like to extract the minimum of a TSpline fit of a TGraph. The only way I found was to create a function Double_t myFunc(x){
mygraph=new TGraph(n,a,b);
....
return mygraph.Eval(x,0,"S");
}

then I declare a function
TF1 * f1 = new TF1("f1","myFunc(x)", min, max); low=f1->GetMinimum(min, max);

Does anyone know an alternative method? the problem is that I actually have an array of TGraph and so the previous solution is not easy to implement.
Cheers

Pietro

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* Pietro Cavalleri, PhD Student         *

* LPNHE 4, pl. Jussieu 75005 Paris      *

* +33-144274166 cavaller_at_lpnhe.in2p3.fr *

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