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Re: adding "placeholders" to an array [message #48967]

Tue, 06 June 2006 15:12

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

pimpk24@hotmail.com writes:

> I was wondering if there is a way to change the dimesions of an
> existing array and to hardwire the new values. It seems that the rebin
> and reform functions only add values by interpolation and nearest
> sampling. I want to predeterming what the new value will be
>
> e.g. Given a random vector, how can I add dimensions of all zero values
>
> 1 4 6 7 8 354 42345
> 0 0 0 0 0 0 0
> 0 0 0 0 0 0 0

The answer to this problem can be found in the Array Concatenation
and Dimensional Juggling Tutorials:

http://www.dfanning.com/tips/array_concatenation.html
http://www.dfanning.com/tips/rebin_magic.html

For example:

IDL> a = [ 1, 4, 6, 7, 8, 354, 42345L]
IDL> b = LonArr(7,2)
IDL> c = [[a],[b]]
IDL> Print, c
1 4 6 7 8 354 42345
0 0 0 0 0 0 0
0 0 0 0 0 0 0

Cheers,

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

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[Message index]

		Re: adding "placeholders" to an array By: David Fanning on Tue, 06 June 2006 15:12
		Re: adding "placeholders" to an array By: Michael Galloy on Tue, 06 June 2006 15:02
		Re: adding "placeholders" to an array By: Paul Van Delst[1] on Tue, 06 June 2006 14:53

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