comp.lang.idl-pvwave archive: archive » Re: remove duplicates WITHOUT sorting

Home » Public Forums » archive » Re: remove duplicates WITHOUT sorting

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: remove duplicates WITHOUT sorting [message #52568 is a reply to message #52567]

Mon, 12 February 2007 09:38

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

rpertaub@gmail.com writes:

> I have an array of 2xn which is a list of coordinates (x,y positions)
> and I need to remove any duplicates in this array. Since they are x,y
> coordinates I cannot really sort the array, hence cannot use the Uniq
> function. Is there another way of doing this?

I don't have time to follow up myself, but there is an
extremely nifty method for removing elements from an array
using Histogram in the Histogram Tutorial. I think it would
be simple to apply it to this problem.

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

Report message to a moderator

[Message index]

		Re: remove duplicates WITHOUT sorting By: Jean H. on Tue, 13 February 2007 08:10
		Re: remove duplicates WITHOUT sorting By: rpertaub@gmail.com on Tue, 13 February 2007 07:18
		Re: remove duplicates WITHOUT sorting By: JD Smith on Mon, 12 February 2007 13:15
		Re: remove duplicates WITHOUT sorting By: btt on Mon, 12 February 2007 11:23
		Re: remove duplicates WITHOUT sorting By: Brian Larsen on Mon, 12 February 2007 10:38
		Re: remove duplicates WITHOUT sorting By: David Fanning on Mon, 12 February 2007 09:38
		Re: remove duplicates WITHOUT sorting By: Vince Hradil on Mon, 12 February 2007 09:23
		Re: remove duplicates WITHOUT sorting By: Craig Markwardt on Mon, 12 February 2007 09:23
		Re: remove duplicates WITHOUT sorting By: Vince Hradil on Wed, 14 February 2007 07:32

Previous Topic:	Cannot resolve QUERY_JPEG
Next Topic:	Re: Writing to the IDLde

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Oct 12 16:34:30 PDT 2025

Total time taken to generate the page: 0.01319 seconds