Re: How to "search" in a matrix?
- To: mathgroup at smc.vnet.net
- Subject: [mg60917] Re: [mg60892] How to "search" in a matrix?
- From: <bsyehuda at gmail.com>
- Date: Mon, 3 Oct 2005 04:06:20 -0400 (EDT)
- References: <200510020554.BAA01427@smc.vnet.net>
- Reply-to: bsyehuda at gmail.com
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
if t is you matrix of strings, you can simply use
First/@Position[t, TheStringYouAreLookingFor]
yehuda
On 10/2/05, Renan <renan.birck at gmail.com> wrote:
>
> 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.
>
>
- References:
- How to "search" in a matrix?
- From: Renan <renan.birck@gmail.com>
- How to "search" in a matrix?