How to extract parts of an array by given logical conditions?

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Hi, I have an array, let's say
M=
1 1 0
1 2 0
1 3 1
2 1 0
2 2 1
2 3 1
and I would like to create a new array only with the case for which the value of the third column equals 1. Thus
N=
1 3 1
2 2 1
2 3 1

Accepted Answer

Image Analyst
Image Analyst on 9 Jun 2014
Try this:
M=[...
1 1 0
1 2 0
1 3 1
2 1 0
2 2 1
2 3 1]
rowsToExtract = M(:,3)==1;
N = M(rowsToExtract,:)
  1 Comment
Emerson De Souza
Emerson De Souza on 9 Jun 2014
Thank you Image Analyst,
your suggestion elegantly solved my problem.
Wish you a nice day
Emerson

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