Re: Sorting tables by columns
- To: mathgroup at smc.vnet.net
- Subject: [mg6397] Re: Sorting tables by columns
- From: "Edward G. Neuman" <edneuman at math.siu.edu>
- Date: Sun, 16 Mar 1997 19:25:09 -0500 (EST)
- Organization: Unknown Organization
- Sender: owner-wri-mathgroup at wolfram.com
fbd2 at psu.edu wrote in article <5gdg7k$kmm at smc.vnet.net>...
> Hi,
>
> Does anyone know how to sort tables by one of its columns?
> For example, the table
>
> 2 3 4 5
> 1 2 7 8
> 6 9 2 1
>
> can be sorted by column 1, giving:
>
> 1 2 7 8
> 2 3 4 5
> 6 9 2 1
>
> This can be done using Excel; however I need to perform
> this operation inside a Mathematica program.
> Is there an automated procedure in Mathematica to accomplish this?
>
> Thanks,
>
> Flavio
>
>
You can use function Sort:
A={{2,3,4,5},{1,2,7,8},{6,9,2,1}};
Sort[A]//MatrixForm
1 2 7 8
2 3 4 5
6 9 2 1
====================================================
Edward Neuman
E-mail: edneuman at siu.edu
http://www.math.siu.edu/neuman/personal.html