Passing workspace variable to matlab App Designer

Hi,

I've been trying to pass a workspace variable (say a variable, y) into matlab app designer but am not observing any results. I tend to get the error:

'error using get, not enough input arguments'.

I call the app within the scrips with and without passing y into the app.

I have tried:

1) Passing y into the app by using the app input arguments function.

2) Property function in app designer.

All i am trying to do is to invoke variable y into the app designer so that it can be manipulated by a sliding function which generates a new output variable which is then plotted against another work space variable, (x).

I have looked at the demo examples but they all the variables exist within the app.

Answer 1

[Adam]

This thread gives a workaround for this if you are using a version of Matlab older than R2017b. Apparently the ability to pass arguments to an App Designer app is now supported in R2017b although I haven't tried myself as I still just use GUIDE or programmatic UIs until App Designer is developed further.

[Optical_Stress]

is there a way to see the workspace variable in the app Designer?

[Adam]

You can see the public properties just by typing

app

if your app is called App. To see private properties you would have to put a breakpoint in some function or other and look at them as e.g.

app.somePrivateProperty