Plotting families of parameters?

Hi everyone, I have fitted experimental data (points with errors) with a three-parametric curve. How can I plot the parameter space for it (i. e. something like this: https://cds.cern.ch/record/1565314/files/kl-draft-new-gluino-1.png, only for three parameters)?

Thank you in advance!

Hi,

I am sorry but I have not understood your question and it is not clear to me what your plot represents.
What are the axes ( I guess the parameters), but what is plotted ? And what the color rapresents ?
Please explain,

Thank you

Lorenzo

I mean the confidence region of the parameters (like 1 versus 2, 2 versus 3, etc.)

Hi,

You can get the parameter contours which defines their confidence regions from Minuit, see the tutorial
fit/fitcont.C
root.cern.ch/doc/master/fitcont_8C.html

Lorenzo

Thank you, I already tried that, but I get “Error: cannot open file “TMinuit.h”” and “illegal pointer to class object gr12”.

I already solved this problem; thank you anyway :slight_smile: