Deleting certain columns in a matrix

506 views (last 30 days)
Hi all,
I have a 267x34 matrix. Now I want to delete certain columns within MATLAB.
For instance if I want to delete the 3rd column, 4th column, 8th column, 14th column and 33 column. How would I write this in a code where they all get delete simultaneously?
Fabian Lischka
Fabian Lischka on 26 Nov 2018
FWIW, above comment from 2016-09-02 does not address the question (deleting multiple columns), and is furthermore possibly a fairly inefficient way of doing what it does (deleting one column).

Sign in to comment.

Accepted Answer

Walter Roberson
Walter Roberson on 15 Jul 2012

More Answers (1)

Reza Zakernejad
Reza Zakernejad on 12 Oct 2017
Edited: Reza Zakernejad on 12 Oct 2017
A(:,[m n p...])=[]; % A input matrix and m n p are #columns to be deleted
  1 Comment
Craig Champlin
Craig Champlin on 5 Dec 2019
Not sure why this is not the "Accepted Answer". It does exactly what I want to. I have several column indexes of outliers which I found by comparing against a threshold. Using this answer, I can simply put my list into the [] and poof outliers are gone.
outliers = find (errorDist > thresholdValue); % list of outliers
M(:,outliers) = []; % *poof!* clean matrix

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!