Retrieve chi2 value from Chisquare()

Roofit and RooStats
1

Hi Everyone,

I am using Chisquare() to compare a TF1 and a TH1. How can I retrieve the chi2 value?

Best and thanks!

Nicolás V.

2

You mean this one ?

3

yes, that function

4

The answer is in the help:

Compute and return the chisquare of this histogram with respect to a function

5

When I put the function, I have no return of a value, I guess one need to call it

6

do:

   double chi2 = yourth1->Chisquare(...);

the value will be in chi2

7

nice!, many thanks

8

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