How to clear figures in Live Editor in 2020b?

I just update to 2020b and notice there are some differences in the new release. First, "Run section" and "Section break" buttons are exchanged. I guess this is due to the usage of "Run section" is more frequenctly than the usage of "Section break". However, this is not compactible to classic editor. "Run section" in classic editor has identical position as "Section break" in live editor, which results in some inconvineince. Second, I cannot clear figures with "Clear all output". I would like to clear all figures and plot new figures in new execution, however, the old figures cannot be removed. No matter of what I do, they are still there. "Clear all output" does work in 2020a. I don't know why it doesn't work in 2020b.

[Nitin Kapgate]

I would like to know the exact version of MATLAB you are using. To get your MATLAB Version, use the following command in MATLAB command window:

version

[fengwuxiaoli]

Version = '9.9.0.1467703 (R2020b)'

In R2020a, I can use "clear all output" to clear all figures (the figures are set to "hold on"). But In R2020b, they are still there and new plots will be overlopped with the old plots.

[Michael Ramseier]

same problem here

[Nitin Kapgate]

Hi Ryan, I tried to reproduce the issue you are facing in the MATLAB version 'R2020b' and found that the "Clear all output" button clears all the figures and other outputs as well. It provides the same functionality in R2020b and in R2020a.

Let me know if you are still facing the same issue.

[fengwuxiaoli]

You need set the figure to "hold on", and plot the figure again after "clear all output". You will see your old line is still there.

[Nitin Kapgate]

Hi Ryan, can you share the representative code which is causing this issue so that I can reproduce the same issue on my side?

[fengwuxiaoli]

x = 1:256;

figure(1000)

plot(x,x), hold on

legend

Below is the figure I plot and "clear all output" four times. There is supposed to be only one line in the figure.

Answer 1

[Michael Ramseier]

I found a little work around:

When you put clf (clear current figure - https://ch.mathworks.com/help/matlab/ref/clf.html) before the plot command it works. But in my opinion that's not the way the live editor should work.

[fengwuxiaoli]

I agree. Now I am using "close all" in the console, it seems be able to close all figures even in Live Editor.

[Maximilian Haider]

For me works 'Clear all output' in the right click context menu of the live output screen.

Maybe that`s a new feature

[fengwuxiaoli]

It works fine if I run the script from beginning. However, if I only run the section, the figure is still there.

[Nathaniel H Werner]

This is a consistent "bug"/issue that has been described for the live editor since near it's inception and has not been addressed.