MATLAB: Help Writing One’s Own Functions

Question

Writing a function in MATLAB was clear enough, but I ran into a little issue I want to correct. When I wrote functions in the past, I was doing them to test a program. The newest function I wrote actually computes something within a program – and it works. The issue I have is calling the function.

With a built-in MATLAB function, say isnan, in the command prompt I can write

M = isnan(A)

for some array A. Then immediately M will be the result of the operation isnan(A).

When I wrote a function, let us call it modify. When I try

M = modify(A)

in the command prompt, I am given the following error

Error using modify
Too many output arguments.

I don't do anything at the end of my function. It ends with a loop. How can I modify my function so that I can assign to it any variable name? I want to be able to perform the same variable assignment on my function as 'M = isnan(A)' above.

Answer 1

I have tried with similar, I have no issue

If I misundestood the question, please clarify?