Re: Sorting Rows of a Matrix
- To: mathgroup at smc.vnet.net
- Subject: [mg65108] Re: [mg65089] Sorting Rows of a Matrix
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Wed, 15 Mar 2006 06:28:19 -0500 (EST)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
Sort[data, #1[[2]] < #2[[2]] &] Bob Hanlon > > From: Gregory Lypny <gregory.lypny at videotron.ca> To: mathgroup at smc.vnet.net > Subject: [mg65108] [mg65089] Sorting Rows of a Matrix > > Hello everyone, > > How can I sort the rows of a matrix by using one or more of the > columns as sort keys just like in a spreadsheet? For example, if > matrix M is 12 x 2 with numbers in the first column and unordered > month numbers in the second, how would I order the rows by month? > > Regards, > > Greg > >