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element selection

• To: mathgroup at smc.vnet.net
• Subject: [mg53605] element selection
• From: "Bruyndonckx P." <pbruynd at vub.ac.be>
• Date: Thu, 20 Jan 2005 03:47:45 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

I have two long sorted lists of Integers.  If the difference between a number in list 1 and a 
number in list 2 is less than a certain value, both are selected to create a couple.  I am 
looking for a fast way to go through both lists and extract these elements to create a new list 
of couples.  I tried a number of things, but all of them were rather slow so I need some expert 
advice here.

Thx,

Peter

• Follow-Ups:
  • Re: element selection
    • From: yehuda ben-shimol <benshimo@bgumail.bgu.ac.il>
  • Re: element selection
    • From: DrBob <drbob@bigfoot.com>