problem with the code "linalg::delCol"

I'm trying to use the code " linalg::delRow" to delete several columns in one time from matrix but it always gives me the error

"Error: Unexpected MATLAB operator."

I do it like that :

A = ([[1, 2, 3, 4], [5, 6, 7, 8]])
linalg::delCol(A, 2)

I don't know what's wrong with that code!!

Answer 1

[Steven Lord]

As the boxed note at the top of the documentation page states, that command ONLY works in a MuPAD Notebook. You cannot use that in MATLAB. To delete a column of a matrix in MATLAB, assign [] (and it needs to be the literal [], not a variable containing []) to the column as shown in the "Diminishing the Size of a Matrix" section on this documentation page.

[Hanan Emad]

thanks so much steven :). I know this method to delete one row or column, but what I need is to delete more than one row or column in the same time!, so I was wondering if matlab has such function to do that

[Walter Roberson]

A(:,[2 7 8 14]) = [];

would delete columns 2, 7, 8, and 14.

[Hanan Emad]

thanks soooooo much Walter :))