pick columns with a index vector
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Hi I have a 30x100 data matrix and a 1x100 index vector with 1s in some columns and 0 elsewhere. How can I pick up columns in the data matrix corresponding to the 1s in the index vector. Thanks in advance.
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Azzi Abdelmalek
2014-1-9
编辑：Azzi Abdelmalek
2014-1-9
%Example
A=rand(30,100)
B=randi([0 1],1,100)
%----------------------
out=A(:,logical(B))
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2014-1-9
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