deleting rows from matrix and saving as a new matrix

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Elina Park
Elina Park 2018-11-28
回答： Star Strider 2018-11-28
Hello,
If I have a matrix 20 x 20, and I want to delete row 2 and 7,
I would use something like
MTX_1([2,7],:) = []
is there a way to save this new matrix as a separate array (such as MTX_2), while preserving the original MTX_1?
Thank you.

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回答（1 个）

Star Strider
Star Strider 2018-11-28
Probably the easiest way:
MTX_2 = MTX_1(setdiff(1:size(MTX_1,1),[2,7]),:)
This creates ‘MTX_2’ while leaving ‘MTX_1’ unchanged.

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