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REBIN needs explaining [message #41929]

Tue, 30 November 2004 15:32

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Hi Folks,

Can someone (Craig?) explain this to me.

Consider:

v = [0, 10]

I understand this:

Print, rebin(v, 20, /Sample)
0 0 0 0 0 0 0 0 0
0 10 10 10 10 10 10 10 10
10 10

What I don't understand is this:

Print, rebin(v, 20)
0 1 2 3 4 5 6 7 8
9 10 10 10 10 10 10 10 10
10 10

Aren't there an awful lot of 10s in there!? Why doesn't this come
out like this:

0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8
9 9 10 10

I notice REBIN, CONGRID, and even CMCONGRID does this same thing. Why?

Cheers,

David

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

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