I have a problem in making a fit of some set of data. I have 4 arrays of data: the first is my x-axis while the other three are my y-axes. I want to fit the y-arrays with the same function but i want only one set of parameters to fit the three arrays.
My fitting function is the subsequent:
where . My fitting parameters are and each y-array is referred to a different value of T.
How can i write the code for this kind of fit?