why evalin doesnt wotk in App Designer matlab 2017b?

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Kaustubh hike
Kaustubh hike on 1 Nov 2021
Commented: Rik on 2 Nov 2021
I am creating app in appdesginer .
When I ran the same code in same matlab version , it works but when I tried to implement it in app designer it gives error as
Undefined function or variable 'XXXX'.
What could be the reason or what could be the alternative for the same?
  9 Comments
Rik
Rik on 2 Nov 2021
That was just an example function. Since you haven't explained anything about how you call your function I can't actually suggest the real changes you should make. You shouldn't be needing evalin. You should use input arguments to your functions.
If you don't know how to do that I suggest you do a basic Matlab tutorial.

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Accepted Answer

Bruno Luong
Bruno Luong on 2 Nov 2021
Edited: Bruno Luong on 2 Nov 2021
You probably forget to populate APP_isc_n_gbxInp in the base workspace.
I create a small app (attached) and evalin works just fine (R2021b)
>> clear
>> testevalin
Cannot retrieve a from base workspace % message when I click on "Get a button", not working since a is not created
>> a=1
a =
1
a = 1.000000 % message when I click on "Get a button", it woeks
>>

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