MATLAB: Sortrows

sort

Hi,I have a matrix. I=

1 4

5 6

2 3

I want the output sorting in the following

5 6

2 3

1 4

Thanks.

sortrows(I,-1)

sortrows(a)

A=[1 2; 7 8; 5 6; 3 4];
B=[1; 4; 3; 2];
A = A(B,:);