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how to exclude a row based on a column value?

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MAHMOUD ALZIOUD
MAHMOUD ALZIOUD 2018-2-13
评论： Star Strider 2018-2-13
Dear All, I have a matrix called M, composed of 15 columns and 100000 rows, the third column supposed to be the month so the values in it must be from 1 to 12, how can i check if there is a value out of this range in this column, for example 13 or 0 or any thing not between 1 and 12? and after that delete the row that carries this error number?

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Star Strider
Star Strider 2018-2-13
Try this:
M_edited = M((M(:,3)>=1) & (M(:,3)<=12), :);
It assigns only the rows in ‘M’ with months from 1 to 12 in ‘M_edited’. The others are not copied to it.
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