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Re: Unpacking algoritmn [message #39328 is a reply to message #39326]

Sat, 15 May 2004 09:12

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Tmorri writes:

> Does any one have an IDL algorithm to unpack this vector
>
> v0=[0 1 2 3 0 4 5 1 0 2 3 4 0 5 1 2 0 3 4 5]
>
> in the following way:
>
> v1=[0 0 0 0 0]
>
> v2=[1 2 3 4 5 1 2 3 4 5 1 2 3 4 5]

Do you mean something like this:

IDL> print, v0
0 1 2 3 0 4 5 1 0 2 3 4 0 5 1 2 0 3 4 5
IDL> v1 = v0[where(v0 eq 0)]
IDL> print, v1
0 0 0 0 0
IDL> v2 = v0[where(v0 ne 0)]
IDL> print
1 2 3 4 5 1 2 3 4 5 1 2 3 4 5

Cheers,

David
--

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

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[Message index]

		Re: Unpacking algoritmn By: Tmorri on Sat, 15 May 2004 16:03
		Re: Unpacking algoritmn By: David Fanning on Sat, 15 May 2004 09:12
		Re: Unpacking algoritmn By: tam on Mon, 17 May 2004 09:04
		Re: Unpacking algoritmn By: James Kuyper on Mon, 17 May 2004 07:40

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