comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » Re: Matching 2 lists

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

Re: Matching 2 lists [message #72222 is a reply to message #72220]

Sat, 21 August 2010 08:35

David Baker
Messages: 6
Registered: August 2010

Junior Member

On Aug 21, 4:28 pm, Gray <grayliketheco...@gmail.com> wrote:
> On Aug 21, 11:16 am, David Baker <de...@le.ac.uk> wrote:
>
>
>
>> On Aug 21, 4:11 pm, David Baker <de...@le.ac.uk> wrote:
>
>>> Hi there,
>>> I'm wondering if someone can help me. I'm trying to match
>>> two lists of stars together. Where I differ from the standard 1-1
>>> match that match_2d.pro does so well is that I would like to be able
>>> to compute a 1-many match. I.e find any star in list B that is a
>>> possible match to a single star in list A not just the closest.
>
>>> Many thanks for any help that someone can provide
>
>>> David
>
>> -oh and just in case, the coordinates are just x and y pixel
>> coordinates not ra and dec. It's just simple euclidean distance that
>> I'm using to set the search radius
>
> If you're using IDL 8.0, you could modify match_2d to return a list of
> length n_a, where each element is an array of indices into b.

Thanks for the advice, whilst I maybe comfortable programming basic
stuff I can't even begin to follow the match_2d code so wouldn't know
where exactly to code in what you suggest. But that is exactly what
I'm after.

-Cheers,
David

Report message to a moderator

[Message index]

		Re: Matching 2 lists By: David Baker on Sun, 22 August 2010 00:06
		Re: Matching 2 lists By: Jeremy Bailin on Sat, 21 August 2010 12:48
		Re: Matching 2 lists By: David Baker on Sat, 21 August 2010 10:03
		Re: Matching 2 lists By: penteado on Sat, 21 August 2010 09:52
		Re: Matching 2 lists By: David Baker on Sat, 21 August 2010 09:37
		Re: Matching 2 lists By: David Baker on Sat, 21 August 2010 08:35
		Re: Matching 2 lists By: Gray on Sat, 21 August 2010 08:28
		Re: Matching 2 lists By: David Baker on Sat, 21 August 2010 08:16
		Re: Matching 2 lists By: Jeremy Bailin on Thu, 26 August 2010 07:10

Previous Topic:	Re: mode of a continuous distribution
Next Topic:	Re: web apps and idl

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Thu Oct 09 08:07:12 PDT 2025

Total time taken to generate the page: 0.64004 seconds