Make a matrix with matching numbers per column from a bigger one

Hello,

Suppose i have the following matrix;

A=[2011	1	2	1	101	0
2011	1	2	1	105	0
2011	1	5	5	108	13.8
2011	1	9	4	107	0.1
2011	1	18	5	101	0
2011	1	19	5	107	0.6
2011	1	21	5	101	0.9
2011	1	23	5	104	5.4
2011	1	24	5	102	4.1
2011	1	25	5	101	0
2011	1	33	5	104	0
2011	1	38	5	104	2.1
2012	1	40	4	101	0
2012	1	46	5	107	0.4
2012	1	47	5	104	5.9
2012	1	49	5	102	4.3
2012	1	60	3	107	0
2012	1	66	1	104	0
2012	1	66	1	104	0]

I want to extract a matrix with matching numbers on certain columns.

For example, the values from column 1 are 2011 and simultaneously, the values from column 5 are 101. I also want to keep the other columns.

Anything would help! Thanks in advance

Answer 1

[Walter Roberson]

mask = A(:,1) == 2011 & A(:,5) == 101;
B = A(mask,:);

[Taichi Cerezo]

Thanks a lot!