retrive specific column value from a matrix

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Mohammad Golam Kibria
Hi,
suppose I have a matrix I as follows:
I =
1 2 5 1 8 1 8
1 2 8 8 8 1 1
1 2 1 1 1 1 1
1 2 5 2 1 1 1
1 1 1 1 1 5 1
1 1 1 1 1 1 1
I need the value of column 4 and 5 where column 2 have value value 2
can any one help?

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采纳的回答

Jan
Jan 2011-6-13
R = I(I(:, 2) == 2, 4:5)

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