I have a problem with the follwing lines
fit_func = fittype("poly1");
fitdata = fit(XValues,YValues,fit_func);
-> so I got the error
Error using plot
Data must be numeric, datetime, duration or an array convertible to double.
If I use this line instead:
Everything is fine
So my question: how am I able to use plot to creates the line in the axes specified by ax?