If I have a 1080 x 4 matrix Y, arranged as:
value1 int int int
value2 int int int
value3 int int int
and so on for 1080 rows,
how do I extract all rows in the matrix with the integer in column 3, whose value is, say 11, and create a new 6 x 4 matrix Z of the six entries in Y with the integer 11 present in column 3?
Thank you,
Don
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