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Form a matrix from elements of a second matrix

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Shashank
Shashank 2012-10-22
关闭： MATLAB Answer Bot 2021-8-20
Suppose if I have a matrix like this:
Time = [1;2;3;4;5;6;7;8;9;10]
Diameter = [1;2;3;4;5;6;7;8;9;10]
If I want to form two matrices, one for diameters less than 6 and other for diameters greater than 6, how can I do that? I also need times for the corresponding diameters on each matrix.
Thanks.

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Matt Fig
Matt Fig 2012-10-23
编辑：Matt Fig 2012-10-23
Your question is a little unclear, but I think you can get what you want with logical indexing.
idx = Diameter<6; % A logical index.
D1 = Diameter(idx);
T1 = Time(idx);
D2 = Diameter(~idx);
T2 = Time(~idx);

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