Extract some columns from a matrix

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alpedhuez
alpedhuez 2018-3-25
回答： Walter Roberson 2018-3-25
Suppose I have a matrix A and suppose I want to create a new matrix from 1st, 3rd, and 4th column of A. Is there any compact way to do this?

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Walter Roberson
Walter Roberson 2018-3-25
B = A(:,[1 3 4])

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