Services & ResourcesWolfram ForumsMathGroup Archive

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

Re: how to delete duplicate items in the same list

• To: mathgroup at smc.vnet.net
• Subject: [mg45576] Re: how to delete duplicate items in the same list
• From: AES/newspost <siegman at stanford.edu>
• Date: Wed, 14 Jan 2004 01:26:46 -0500 (EST)
• References: <bto1uf$2ka$1@smc.vnet.net> <bu0cjl$ah9$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

> > I can't find a way to make sure all items in the same list are unique. Can
> > anybody help me out? Thanks a lot!

> Union[a]==a


Can anyone explain why "Union" means what it does?  -- or at least a 
mental crutch to help me remember that Union is the command that does 
this?

(Doesn't seem an obvious name for the function involved, though I 
suppose I could try to think "Unique" --->  "Union")

• Follow-Ups:
  • Re: Re: how to delete duplicate items in the same list
    • From: Andrzej Kozlowski <akoz@mimuw.edu.pl>
  • Re: Re: how to delete duplicate items in the same list
    • From: Selwyn Hollis <sh2.7183@misspelled.erthlink.net>