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Re: sort list

  • To: mathgroup at
  • Subject: [mg47242] Re: sort list
  • From: Bill Rowe <readnewsciv at>
  • Date: Wed, 31 Mar 2004 02:59:47 -0500 (EST)
  • Sender: owner-wri-mathgroup at

On 3/30/04 at 4:02 AM, guibout at (Guibout) wrote:

>Hi, I have a list of the form
>{{something1,x1},{something2,x2},{something3,x3}} where x1,x2, x3
>are numbers. I want to sort this list with respect to xi. In other
>word if x2<x3<x1 I want Mathematica to produce:

There are a number of ways to do this. Either

Sort[list, OrderedQ[{Last@#1,Last@#2}]&]



will so what you want. Note, the second of these two methods is much faster for large lists.
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