Removing zero columns from matrix

This is my code:

N=3;

x=randi(9,3,N)

func = @(index)bsxfun(@minus,x(:,1:N),x(:,index));

mat = cell2mat(arrayfun(func,1:N,'uni',0))

This is my output:

0 -5 -4 5 0 1 4 -1 0

0 0 -6 0 0 -6 6 6 0

0 -2 5 2 0 7 -5 -7 0

How do I remove columns with zeros?

Answer 1

[madhan ravi]

matrix(:,any(matrix == 0))=[] % removes column if there is any zero in the column
matrix(:,all(matrix == 0))=[] % removes column if the entire column is zero

[Jon Adsersen]

Shouldnt it be like this then?

matrix(:,any(matrix==0))=[] % removes column if there is any zero in the column
matrix(:,all(matrix==0))=[] % removes column if the entire column is zero

[Guillaume]

@Jon, yes you are correct. I've fixed Madhan's answer (and accepted it)

[madhan ravi]

Thank you Jon and Guillaume:)

[Ömer BOZKURT]

Hello Sir. I have a question about delete columns. I want to delete columns if columns have more than 3 zero. How can I find it? Thanks for helping.