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Extracting only certain data from a matrix

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Justin
Justin 2023-7-11
评论： the cyclist 2023-7-11
I have a very large matrix and I need only certain data to show from it. I need only the data that has values of 3 in the first column. How do I find this.

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回答（2 个）

Stephen23
Stephen23 2023-7-11
Where M is your matrix:
X = M(:,1)==3;
B = M(X,:)
Parth Saraf
Parth Saraf 2023-7-11
Hi,
You can try using this:
M(M(:, 1) == 3)
Hope this helps!

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