Problem with error fit

From: Francesco Perfetto <>
Date: 05 Apr 2005 13:07:17 +0200

Hi all,

I have this problem: I have a graph generated with the class TGraph:


    gr = new TGraphErrors(n,E,rms);
    //gr->SetTitle("Low purity");



now, when I fit the graph with (for example) a "pol0" or a "pol1" I have that the error on p0 and p1 in the box pave stats is different (is another thing) from the error that appear in the root shell.

Why ?
What is the right error ?
Is this a my mistake ?

I use root 4.00/04 on RH 9.0

Francesco. Received on Tue Apr 05 2005 - 13:06:02 MEST

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