find value in matrix

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Rahul
Rahul 2012-6-4
a =
3.00 16.00
6.00 22.00
2.00 6.00
1.00 25.00
4.00 4.00
I want those rows in which second column is less than a certain value say 15
b= 2 6
4 4
DO i need to sort or can I do it without sorting..

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Thomas
Thomas 2012-6-4
You can do without sorting:
b=a(a(:,2)<15,:)

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