How to "search" in a matrix?

*To*: mathgroup at smc.vnet.net*Subject*: [mg60892] How to "search" in a matrix?*From*: Renan <renan.birck at gmail.com>*Date*: Sun, 2 Oct 2005 01:54:43 -0400 (EDT)*Reply-to*: Renan <renan.birck at gmail.com>*Sender*: owner-wri-mathgroup at wolfram.com

I have this matrix: matr = {{a, b, 1}, {c, d, 2}, {e, f, 3}} I'm trying to do a "search" in a matrix. The "real" matrix will contain strings. How to "search" for a given value in a matrix and return all lines that have it? 'Select' seems to handle only lists - and this would require a Flatten, probably making my code too complicated and maybe slow (the real matrix will contain something like 100 elements - weather data). Thanks.

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