Hi everybody,
we are trying to write a list of data on a file.
We tried to launch "fprintf" from a Macro (automatically generated by
ROOT(MakeClass), to make a loop on a Tree), as follows:
TCanvas *FinA = new TCanvas("FinA","Energy per plane",1);
FILE *sigmaf = fopen("sigma100.dat","w");
Float_t sigma[18];
for (Int_t i=1; i<=18; i++) {
EnergyOnPlane[i]->SetMaximum(1200);
EnergyOnPlane[i]->Draw();
EnergyOnPlane[i]->Fit("gaus");
sigma[i-1]=gaus->GetParameter(2);
fprintf(sigmaf,"%f \n",sigma[i-1]); <<<-----???
FinA->Update();
char w = getchar();
}
The file is correctly created, but appears to be empty... Any idea why?
Thanks,
Alberto
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