TGraphErrors and TVector

Hi everybody,

I have a problem using Tvector with TGraphErrors, this is what i do:

TVector *xval = new TVector(mytree->GetEntries();
TVector *erxval = new TVector(mytree->GetEntries();
TVector *yval = new TVector(mytree->GetEntries();
TVector *eryval = new TVector(mytree->GetEntries();

for(int i=0;i<mytree->GetEntries();i++){ mytree->getEntry(i);
xval(i) = Energie;
yval(i)= Flux;
erxval(i)=0;
eryval(i)=0;
}

and i have a problem of call when i do:
TGraphErrors *gr1 = new TGraphErrors(xval,yval,erxval,eryval);

I tried to put some * or & and some combinations ;-) but still doesn't work...
Does anyone would know how i could solve it ?

Thanks very much in advance!

Cheers,
Alexis Received on Thu Jan 20 2005 - 14:32:46 MET