comp.lang.idl-pvwave archive: archive » Re: which array dimensions are contiguous?

Home » Public Forums » archive » Re: which array dimensions are contiguous?

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

Re: which array dimensions are contiguous? [message #47523 is a reply to message #47522]

Mon, 13 February 2006 12:04

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

greg michael writes:

> I know somebody wrote this only recently, but I can't find it again. If
> the function below, EvaluateFunctionSection, returns a 2-d array
> (ns,nl), will assignment put it into contiguous memory, or make some
> kind of awful (slow?) mess?
>
> b=fltarr(ns,nl,n_elements(f))
> for i=1,n_elements(f) do begin
>
> b[*,*,i]=self-> EvaluateFunctionSection(f[i],ln,sm,nl,ns,downsample=downsamp le)
> endfor

It will make a (slow) mess. Do this, instead:

b[0,0,I]=self->EvaluateFunctionSection[I], $
ln,sm,nl,ns,downsample=downsample)

See this article:

http://www.dfanning.com/misc_tips/submemory.html

Cheers,

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

Report message to a moderator

[Message index]

		Re: which array dimensions are contiguous? By: greg michael on Tue, 14 February 2006 02:51
		Re: which array dimensions are contiguous? By: greg michael on Tue, 14 February 2006 02:31
		Re: which array dimensions are contiguous? By: David Fanning on Mon, 13 February 2006 12:04

Previous Topic:	which array dimensions are contiguous?
Next Topic:	weighted Gaussian distribution mean

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 17:21:03 PDT 2025

Total time taken to generate the page: 0.00994 seconds