I'm trying to fit a function with 3 independent variables and 1 dependent. I have all of the data and I've tried a few methods but nothing works.
I want a function set up so that the result would be F where F = f(x,y,z). Developing a model from a matrix of [ x, y, z, F] values. Any suggestions?
To clarify, I don't need to plot it (yet if ever).