Group values of one column based of the values of another

Hi all,

I have a two column matrix, I would like to group y such that if x isbetween 0 and 0.7 then corresponding y values belong to subarray 1, if x isbetween 0.8 and 1.4, then corresponding y values belong to subarray 2 and so on. How can I go about this. Thanks in advance

sample from matrix [x y]=

0 0.2954

0.1000 0.0861

0.2000 -0.0204

0.3000 0.0046

0.4000 0.2297

0.5000 0.7651

0.6000 -0.4482

0.7000 -1.2974

0.8000 0.3673

0.9000 -0.7759

1.0000 0.5676

1.1000 1.0851

1.2000 0.4082

1.3000 0.3364

1.4000 -0.3396

1.5000 -0.1935

1.6000 0.5228

Answer 1

[KSSV]

If (x,y) are two column arrays you have. You can get values lying in between two values using:

idx = x>=0.8 & X<1.4 ; 
y1 = y(idx) ;