[ROOT] How do you display the error matrix?

From: Gail Ruby (rubyg@utdallas.edu)
Date: Wed Dec 04 2002 - 22:16:40 MET 

Dear Rooters,

I am running version 3.03/09 on a Linux maxhine.

After doing my fit using TF1::Fit:

root [15] TF1 *ff = new TF1("ff", "gaus+pol3(3)", 1.78, 1.95)
root [16] ff->SetParameters(hsD0Mass1->GetMaximum(), 1.862, 0.006, 1, 1,1, 1)                
root [17] hsD0Mass1->Fit("ff")                                                                


I typed in the following:

root [18] const int npar =7; doublematrix[npar][npar];  gMinuit->mnemat(&matrix[0][0],npar);
root [19] 

The return provided nothing.

How do I get a display on the screen of the error matrix?

Thanks,
Gail Ruby

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