How to 'who' the global workspace to a variable in a function ?

Hi,

I'm trying to do a "clear all but" function, i.e. clear all variables in the workplace except those who are specified : function [ ] = clearAllBut( var1, var2 ...)

I was thinking about getting the workspace variables names in a cell with : A = who('global') but it doesn't work since the call of who is within a function and retrieves the local workspace (which is empty because it is the first thing I do in my function).

Is there a way to really retrieve the global workspace variable names ?

Thank you for your help

Léo.

Answer 1

[Matt J]

I don't see how retrieving the global workspace variables helps you. To clear all variables excluding some set, do

clearvars -except  A B C

etc...

[Léonard Roussel]

Oh I didn't know it existed. Thank you !

Answer 2

[José-Luis]

This sounds like a job for keep4.

[Matt J]

Maybe if you have an older MATLAB version...

[Léonard Roussel]

Thanks !

[José-Luis]

Or if you prefer the simpler syntax