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How could I extract the first two columns, and leave the next two and then so on from a matrix

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for example I have 100 columns, then how could I extract the first two and then leave the next two columns like this (1,2,5,6,9,10,13,14,..............97,98)..

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Accepted Answer

Joel Handy
Joel Handy on 5 Aug 2019
Edited: Joel Handy on 5 Aug 2019
% Set up example data set
A = eye(100);
A(1,:) = 1:100;
numCols = size(A,2);
% Answer
B = A(:,sort([1:4:numCols 2:4:numCols]));
% Verification
size(B)
B(1,:)

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