Services & Resources / Wolfram Forums
MathGroup Archive
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2004

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

Search the Archive

Sorting question

  • To: mathgroup at
  • Subject: [mg52758] Sorting question
  • From: Nimrod <jdedguard-agent at>
  • Date: Sat, 11 Dec 2004 05:23:38 -0500 (EST)
  • Sender: owner-wri-mathgroup at

 A simple sorting question that has me stumped as to how to do it both
quickly and elegantly.

I have a list of data pairs of the form (distance, time).  I want to
sort on the distance element and then remove all pairs where the time
element is out of order with the distance element.  For example
((1,1),(2,3),(3,2),(4,4)) --> ((1,1),(4,4)).  The actual lists are
much longer.

Thanks in advnace,


  • Prev by Date: Solve question
  • Next by Date: Re: How to evaluate Exp[I Pi(1+x)]?
  • Previous by thread: Re: Solve question
  • Next by thread: Re: Sorting question