Deleting certain columns in a matrix

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?

Thanks,

[Mayank Malaviya]

B = horzcat(A(1:end,1:n-1),A(1:end,n+1:end)); % A is your matrix and n is the column which is to be removed

[Fabian Lischka]

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).

Answer 1

[Walter Roberson]

See http://www.mathworks.co.uk/matlabcentral/answers/41762-delete-row-from-matrix

[Mate 2u]

Thanks

Answer 2

[Reza Zakernejad]

A(:,[m n p...])=[]; % A input matrix and m n p are #columns to be deleted

[Craig Champlin]

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