How to quickly display the magnitude of a complex signal that I have in the workspace (or any other function of it)?

Hi,

I often deal with complex signals of which I need to plot the magnitude. I would like to know if there is a quick way (like customizing the MATLAB plots tab, or creating a favorite command) to do it.

For the plots tab, is it there a way to customize it by adding personalized plots?

In case of creating a favorite command, how do I specify in its code the variable name that is currently being selected in the workspace?

Thanks in advance,

Matteo.

[Davide Masiello]

Could you show a minimal example?

That'd help understading your objective better.

[Matteo Bernini]

Let's say that at some point at the debugging of your code or at the end of a script, a row vector of complex sits in your workspace.

What I have to do in order to plot its magnitude is to type in the command window plot(abs(signal)).

I do this so often that the juice of my question is whether there is a way to speed up the procedure, with 2 successive clicks of the mouse (but it can generalized to any elaboration of a variable).

First click to select it in the workspace, second click to invoke a favorite command to do the job or a plot command in the plots tab of MATLAB (I guess this second scenario requires more than two clicks...)

/Matteo.

Answer 1

[Walter Roberson]

See the aswer from PositronDude at https://stackoverflow.com/questions/3533074/how-do-you-retrieve-the-selected-text-in-matlab

That answer depends upon the selected text be in the editor. There just might be related tools for the variable editor and for the command line. I am looking at the variable editor now, but I do not currently see any way of finding out what the currently selected variable is.

[Walter Roberson]

I do not yet find any way to do this if what is selected is on the command line -- so far I only see ways to check the command window size, to insert something into the command history, and to execute something on behalf of the user.

[Matteo Bernini]

Thank you Walter. Let's wait to see if someone has something to add, but it seems hard to achieve without Mathworks' intervention.