who listing of variables

## Syntax

    who
                who()
                [names, mem] = who([mode], [sorted])

## Arguments

mode

  `local`/`get`: list visible variables (not only in current function).

  `scope`/`current`: list variables in the current scope/function.

  `global`: list global variables.

sorted

  Boolean value to specify if output must be sort in alphabetical order.

names

  String matrix with variable names.

mem

  Double matrix with variable used memory in bytes.

## Examples

    a=1;
    b=2;
    [name, mem]=who("local");
    position=find(name=="a")
    mem(position) // Size used by a
    position=find(name=="d") // []

    function foo(a,b)
        disp(who("scope", "sorted"))
    endfunction

    foo(1,2);

## See also

- whos
- who_user

## History

6.0.1 Add "scope" or "current" mode.