clear all output code

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ga rec 2019-8-12

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评论： Chen Wu 2024-3-31，14:40

Is it possible in matlab live script to "clear all output" with a program code?

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Adam Danz 2020-11-3

在 MATLAB Online 中打开

Note that examples of use cases are below (see comment).

In the Live Editor environment we have the option [Clear all Output] under the View tab. Many people, including myself, want to execute this programmatically. So, any workflow that includes that button is a workflow that could be done programmatically, if we had such a command.

For example, many people use a script to clear everything (example), to set Matlab to a clean state that removes all figures, clears all variables, and clears the command window. But when you're working with a Live Script, you have to take the extra measure of selecting the view tab > pressing the clear-all-output button.

Another example is when adding code to a live script after an embedded figure is produced, the new code goes under the figure until the live script regenerates the content. That's annoying but so is clicking on a tab and then a button to clear the content. Instead, I'd like to add the clear-live-script command to my existing shortcut that cleans up the matlab console.

I don't think an existing commands should clear the live script. Instead, I think there should be an additional command or flag to clear live scripts. That way live script content is only cleared intentionally. For example,

clear livescript
% or 
cls 

The functionality already exists and is invoked when the clear-all-output button is pressed. The new function or flag would do the same thing.

K. 2020-11-10

Regarding Walter's comment, I think I found the post where someone was trying to use clc and fprintf to show textual progress updates. If anyone is interested, I have posted a different workaround for textual progress indication that works in the Live Editor. Essentially, you can use the '\b' (backspace) character to remove characters from textual output in the Live Editor.

Walter Roberson 2020-11-10

Yes, that is the one. Thanks, K.

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回答（2 个）

Heather Lai 2020-10-18

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I would also like to encourage this functionallity. When I write code which I would like to operate iteratively after a user input, it would be very helpful for the output to be programatically cleared.

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Chris Kloppers 2020-10-22

I also need to have this functionality. Mainly for good housekeeping, but I can think of many reasons why I would need it. It will even help to clear the output only for the current section.

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Sai Bhargav Avula 2019-8-20

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Currently you cannot programmatically set the clear output in Live Editor. There are only two ways to do this. First, the one you mentioned and the other by right clicking anywhere in the script and selecting the Clear All Output option.