Re: ordering a large matrix and referring to the named rows later
- To: mathgroup at smc.vnet.net
- Subject: [mg75347] Re: ordering a large matrix and referring to the named rows later
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Thu, 26 Apr 2007 03:29:02 -0400 (EDT)
- Organization: Uni Leipzig
- References: <f0n8n0$s99$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi
you should sort a reference array
mat = Table[Random[], {4}, {2}];
refArray = Table[i, {i, 1, 4}]
Sort[refArray, mat[[#1, 2]] < mat[[#2, 2]] &]
Regards
Jens
newbie wrote:
> Hi,
> I have a large matrix {5165, 26}, the first row and first 8 columns
> identify the values in the matrix. I need to be able to sort the data
> without losing the ability to reference the labels. Any ideas?
> Thank you very much for any help!
>
>