Force output for function with no output

Question

Sergey Kasyanov 2019-10-15

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/485480-force-output-for-function-with-no-output

回答： Walter Roberson 2019-10-15

Hello!

I am working with function handles and get error because function does not return anything. Can I force any function to return something (does not mean what)?

Explainations what I do:

My handle function set some variable to Simulink.data.Dictionary with Simulink.data.dictionary.Entry.setValue and starts simulation of model. After all my handle function process result of simulation and return 2-by-1 cell array: first cell is empty because Simulink.data.dictionary.Entry does not return anything, second cell contains result of simulation. I want to save result of simulation but I can not do that. For example when I try do that I catch error:

A=FUN(x);%error occurs. Signature of Simulink.data.dictionary.Entry.setValue is mismatch but that is no true because signature is OK (believe me please).

but when I do that program work fine:

FUN(x)
A=ans;%work fine.

I think that problem is caused by no output by Simulink.data.dictionary.Entry.setValue and I want to force any output from Simulink.data.dictionary.Entry.setValue or maybe construct handle function which get another handle function then evaluate it and return empty matrix for example.