Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2005
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

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.


  • Prev by Date: suppressing graph objects
  • Next by Date: Re: Finding length in recursive definition?
  • Previous by thread: Re: suppressing graph objects
  • Next by thread: Re: How to "search" in a matrix?