Chi2 value got from function "chiSquare"

Roofit and RooStats
1

Hi,

I’m trying to use the function “chiSquare” to get the chi2 value/ndof for my fitting, I’m wondering am I supposed to put the number of my fitting parameters into this function as an argument? For example, if I have two fitting parameters, should I use

frame->chiSquare( );
or
frame->chiSquare(2);

Thanks!

Best,
Yanlin

2

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