How to store results from a function?

Question

Ara Jo 2021-3-17

0
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https://ww2.mathworks.cn/matlabcentral/answers/775427-how-to-store-results-from-a-function

回答： Rashed Mohammed 2021-3-23

Hello,

I'm using fminsearch to find parameters (para) that minimize the objective function. To exaplain, I have the following line that calls 'myfunction' that calculates the objective function:

[parahat,fval,exitflag] = fminsearch(@(para)myfunction(para), para0, X,opts);

where 'para0' contains initial values, X are some input arguments, and 'parahat' containes the estimated parameters. Here, I'm wondering if there's a way to save some results from 'myfunction' produced in the process of getting to the objective function. myfunction is written as :

function [dist] = myfunction(para, X)

and in reaching 'dist' which is to be minimized, the function calculates some values, let's say Y and Z.

Is there a way to report Y and Z calculated based on 'parahat' (so the last Y and Z in the process of searching for the minimum) along with 'parahat' and 'fval'?

Thank you very much for your help in advance.