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Multiple nonlinear regression using MATLAB?
I have the following function: y = a * x1^alpha * x2^beta + b
I am trying to find a, b, alpha and beta. I have data for y, x1 and x2 (which are 2 independent variables). How can I solve this using MATLAB?
4 Answers
- Anonymous1 decade agoFavorite Answer
That's a curve fitting, right?
One possibility is to solve it as an optimization problem. You have to set your function in such a way that its minimized value is the answer. There are functions to minimize other functions, for example fminsearch.
See this full example:
