I want to chose a function and use it in the code, but have the possibility to chose different functions, is it possible?

I am trying to have the possibility to chose different files (which are functions) and use them with a signal. But I need to have the possibility to change the function without changing the code. I tried this, but I don't know if it works. And I don't know why it doesn't work, because if I call the function directly, it is ok!

[Stephen23]

"But I need to have the possibility to change the function without changing the code"

Then you should be using function handles, rather than messing about with text representation of function names.

https://www.mathworks.com/help/matlab/function-handles.html

Answer 1

[Walter Roberson]

fun = str2func(baseStr);
input_dpd = fun(input_signal.x);

[Bárbara Matos]

Thank you! :)) I discovered two different ways and now I'm going to see what's the best

[Stephen23]

The best is to use STR2FUNC, which at least makes the intent clear.

[Bárbara Matos]

Yup! I used it, thank you :)

Answer 2

[Voss]

Try replacing your line with eval with the following:

input_dpd = feval(baseStr,input_signal.x);

[Bárbara Matos]

Thank you for the suggestion! Then it appeared another problem, but this worked! :))