Indexing matrix from array
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Hi,
I have A = [1:3; 4:6; 7:9] and an index B = [1;0;1].
How can I extract from each column of A the values at are equal to 1 in B?
I want C = [1:3;7:9]. (I am trying to avoid having to use repmat for B)
Thank you!
IP
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