Variables cannot be recognized in app designer

I wrote a program in a script and it works, but it doesn't work in app designer. The unrecognizable code is shown below (a part of the calling function). Thank you very much for your time.

Answer 1

[Matlab Pro]

Hi @Xiangfeng

I've just tried it, It works 100% OK

Look @ the screenshot (attached)

What you must make sure is that you do have a "p_train" variable exiting in the "base" workspace

p_train = 'here is an answer for your question';

Anyhow (for future issues) - when you have an error - and you need some help - send the exact Error message

[Xiangfeng]

p_train and t_train are located in the objective function script. When I run the app to call the objective function, an error occurs (as shown in the figure below).

Answer 2

[Kumar]

Hey!

To achieve this, you could turn the script into a MATLAB function that returns the variables as a function output. Then, you can call the function with the variables you need from, within app designer, and it will return the value to a variable you specify.

You can refer to this tutorial to get a basic understanding on how to convert a script into a MATLAB Function: https://www.mathworks.com/help/matlab/creating_guis/create-a-simple-app-or-gui-using-app-designer.html