Special selecting rows of a matrix

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mr mo
mr mo 2017-12-18
评论： mr mo 2017-12-19
Hi. I have a matrix of size m*n.
I want to select those rows of this matrix that their value in 10th column are between 10 to 12.
How can I do that?
Thanks a lot.

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Roger Stafford
Roger Stafford 2017-12-18
编辑：Roger Stafford 2017-12-18
Let M be the given matrix. Then do this:
p = (1:size(M,1)).';
p = p(M(:,10)<=12&M(:,10)>=10);
p will be a column vector consisting of the row indices of all rows in M in which the element of the 10th column lies between 10 and 12.

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