Removing zero columns from matrix
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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?
采纳的回答
madhan ravi
2019-2-10
编辑：Guillaume
2020-4-1
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
4 个评论
Jon Adsersen
2020-4-1
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
madhan ravi
2020-4-2
Thank you Jon and Guillaume:)
Ömer BOZKURT
2022-8-16
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.
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