Re: fit

From: Rene Brun <>
Date: Fri, 9 Sep 2005 14:22:11 +0200 (MEST)

You should implement your own minimisation function as shown in $ROOTSYS/test/minexam.cxx.

Because we already had a few similar requests, we may implement in the coming months a THStack::Fit function in case of a stack of histograms with identical specifications.

Rene Brun

On Thu, 8
Sep 2005, Margar SIMONYAN

> Hello
> could you please give me a hint about following issue.
> I have 4 variable bin (x axis) histograms of one quantity for different
> energies (20, 50, 100, 180) and would like to fit all histograms together
> with a function. It is important use I option in the minimization. One of
> ROOT tutorials "Example of a program to fit non-equidistant data points"
> gives some ideas, but I don't know how deal with variable bins and Integral
> option in this case.
> Best regards,
> Margar Simonyan
Received on Fri Sep 09 2005 - 14:22:20 MEST

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