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Re: How to rebin complex array? [message #39021 is a reply to message #39019]

Tue, 13 April 2004 17:47

Peter Mason
Messages: 145
Registered: June 1996

Senior Member

Yunxiang Zhang wrote:
> Folks,
>
> I wanna do the following thing as fast as possible.
>
> ;creat a complex array
> a=complexarr(na)
> ;replicate the array k times
> b=rebin(a,na,k)
>
> But rebin won't accept complex array. :( What should I do?

Further to what Mark has written, if this *really* is what you want to do
and if you can live with REBIN's /SAMPLE option (which is faster than its
default bilinear interpolation anyway), then you might try something like
the following:
d=double( a, 0, na )
r=rebin( temporary(d), na, k, /SAMPLE )
b=complex( temporary(r), 0, na, k )
Of course, this'll only work for single-precision complex "a". (8 bytes
per value, same as "non-complex" double precision.)

Peter Mason

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[Message index]

		Re: How to rebin complex array? By: Yunxiang Zhang on Wed, 14 April 2004 13:01
		Re: How to rebin complex array? By: R.G. Stockwell on Wed, 14 April 2004 09:31
		Re: How to rebin complex array? By: James Kuyper on Wed, 14 April 2004 06:47
		Re: How to rebin complex array? By: Timm Weitkamp on Wed, 14 April 2004 00:39
		Re: How to rebin complex array? By: Peter Mason on Tue, 13 April 2004 17:47
		Re: How to rebin complex array? By: Mark Hadfield on Tue, 13 April 2004 17:10

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