How to i reset/clear an figure in app designer?

I tried to write

app.UIAxes.cla; 

or

cla(app.UIAxes)

but it doesn't do the job.

Yes it clears the figure, but when I replot something, in the same figure, the old data is still there.

How can I remove this previous data/plots?

[Geoff Hayes]

What is your code for when you plot the new data? Are you sure that this new data doesn't include any of the old data?

[Fabian Winkler]

I have the same problem.

This is how I plot the data in the first button pushed function

hold(app.UIAxes);
plot(app.UIAxes, x_data, y_data)

After this I tried in another button pushed function

cla(app.UIAxes)

and

app.UIAxes.cla

both is not working.

I am using Matlab 2019b

[Eric Sargent]

You also need to specify what kind of hold you want.

Your code is:

hold(app.UIAxes);

Which toggles hold between "on" and "off" and thus could very well be contributing your observed behavior.

You need to specify "on" or "off" as follows:

hold(app.UIAxes,"on");

or

hold(app.UIAxes,"off");

Answer 1

[Fabian Winkler]

Found the solution.

cla(app.UIAxes) 

worked for me.

Befor I got an error: "Reference to a cleared variable app". This was because of a

clear all

. Without it, everything is fine.

Answer 2

[Hadi Mahmodi]

cla(app.UIAxes, 'reset') 

this worked for me. Matlab 2020a