MATLAB: Obtaining data from matrix outside multiple ranges

dataindexingmatrixobtainrange

Hi all,
I have a massive matrix, lets call it A:
    A=[1 -2 3 4 5 6 7;
       3 4 5 6 7 8 9;
       4 5 6 6 8 9 10;
       4 6 7 8 9 0 12;
       2 11 5 7 2 7 21];
and I would like to obtain any row(s), where the 2nd column's data is within these two ranges: 0<A(:,2)<5 and 10<A(:,2)<15.
I know how to do this for one specified range, but not for two different ranges like above.

Best Answer

Use the or operator |:
A = [1 -2 3 4 5 6 7;
     3  4 5 6 7 8 9;
     4  5 6 6 8 9 10;
     4  6 7 8 9 0 12;
     2 11 5 7 2 7 21];
%
idx =  0 < A(:,2) <  5;
idy = 10 < A(:,2) < 15;
B = A(idx | idy, :)
giving
B =
  1   -2    3    4    5    6    7
  3    4    5    6    7    8    9
  4    5    6    6    8    9   10
  4    6    7    8    9    0   12
  2   11    5    7    2    7   21
(All rows of your example matrix fulfill these conditions)
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