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## Re: Extract rows of a matrix based on value of column

**From**: |
Michael Grossbach |

**Subject**: |
Re: Extract rows of a matrix based on value of column |

**Date**: |
Wed, 29 Nov 2006 21:09:26 +0100 |

**User-agent**: |
Thunderbird 1.5.0.8 (Windows/20061025) |

Masatran, R. Deepak wrote:

Octave list,
How can I extract the rows of a matrix which have a particular value in a
particular column?

A = round(rand(10)*10); # generate random integers.
rows = find(A(:,6) == 5); # extract row indices to 5's in col 6
Returns the empty matrix if no 5 is in column 6.
HTH, Michael