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Re: Vector comparison. [message #37051 is a reply to message #37049]

Thu, 20 November 2003 09:24

tam
Messages: 48
Registered: February 2000

Member

Timm Weitkamp wrote:
> Darnit! I was so proud of my answer... only to find that Chris Lee already
> proposed the same method (the "memory-hogging" one), albeit using more
> lines and this "if count eq 0 then ..." after WHERE, which always annoys
> me for some stupid reason. It can be avoided, which gives me an excuse to
> post my suggestion anyway:
>
> function Get_Match, a, b
> na = n_elements(a) & nb = n_elements(b)
> return, where(total((rebin(a,na,nb) - rebin(transpose(b), na, nb)) eq 0, 2))
> end
>
> Cheers,
>
> Timm

Hey, even I can understand this one! The only problem I can see
is that it can't handle arrays of strings... It's easy enough
to change the "a-b eq 0" to just "a eq b", but I don't see
how to do the rebin functionality on a string array. Is there
some other way to expand a string vector into a matrix (without
using something like the explicit pointer vector I had used).

Congratulations,

Tom

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[Message index]

		Re: Vector comparison. By: JD Smith on Thu, 20 November 2003 11:38
		Re: Vector comparison. By: tam on Thu, 20 November 2003 10:55
		Re: Vector comparison. By: David Fanning on Thu, 20 November 2003 09:55
		Re: Vector comparison. By: Craig Markwardt on Thu, 20 November 2003 09:35
		Re: Vector comparison. By: tam on Thu, 20 November 2003 09:24
		Re: Vector comparison. By: David Fanning on Thu, 20 November 2003 08:52
		Re: Vector comparison. By: Chris[1] on Thu, 20 November 2003 08:08
		Re: Vector comparison. By: David Fanning on Thu, 20 November 2003 08:08
		Re: Vector comparison. By: R.Bauer on Thu, 20 November 2003 07:11
		Re: Vector comparison. By: tam on Thu, 20 November 2003 07:03
		Re: Vector comparison. By: hunter on Thu, 20 November 2003 06:49
		Re: Vector comparison. By: David Fanning on Thu, 20 November 2003 05:40
		Re: Vector comparison. By: R.Bauer on Thu, 20 November 2003 04:02
		Re: Vector comparison. By: Craig Markwardt on Thu, 20 November 2003 02:19
		Re: Vector comparison. By: Chris Lee on Thu, 20 November 2003 02:09
		Re: Vector comparison. By: R.Bauer on Thu, 20 November 2003 01:01
		Re: Vector comparison. By: Craig Markwardt on Thu, 20 November 2003 00:23
		Re: Vector comparison. By: David Fanning on Wed, 19 November 2003 18:05
		Re: Vector comparison. By: R.Bauer on Wed, 19 November 2003 17:50
		Re: Vector comparison. By: Craig Markwardt on Wed, 19 November 2003 15:48
		Re: Vector comparison. By: Pavel Romashkin on Wed, 19 November 2003 16:09

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