Constrain in TFraction Fitter Class

ROOT
1

Hello,

We are trying to fit two MC histograms with data using TFraction Fitter Class.
In that macro there is a line:
fit->Constrain(parameter # ,lower ,higher)

Can anybody explain what is this parameter number and how one can set the lower and higher limit?

regards

2

Hi,

Thjis method set th elower and upper limit on the parameter (by default they are -inf, +inf). The parameter number is the one following the order given in the input array of TH1* given in the constructor.

See the reference doc at root.cern.ch/root/htmldoc/TFract … :Constrain

Best Regards

Lorenzo