Displaying the best fit parameters on a plot

Newbie
1

Hi everyone

I’d like to display the best fit parameters on the plots, how do it do that
i have attached the marco i have been working on
thanks advance
basichist.c (5.7 KB)

2

gStyle->SetOptFit();

3

Thank you, I used getStyle->SetOptFit(1011) ;

4

I was wondering if it is possible to use a low pass filter in one of my plots, if so how would i go about doing so?