comp.lang.idl-pvwave archive: archive

Home » Public Forums » archive » Help with Idl+Envi

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

Re: help with idl [message #83183 is a reply to message #71738]

Thu, 07 February 2013 10:26

Brian Daniel
Messages: 80
Registered: July 2009

Member

On Thursday, February 7, 2013 9:13:36 AM UTC-5, fd_...@mail.com wrote:
> Does anyone know how to create a Toeplitz matrix in idl??
>
>
>
> Best Wishes
>
> Mar

DIAG_MATRIX can build this easily.

N=8
OneLine = Indgen(N)+1
a = make_array(N,N)
FOR ii=-N+1, N-1 DO a += Diag_Matrix(Replicate(OneLine[ii],abs(N-abs(ii))),ii)

The abs() business was to allow for lower triangular portion to be filled. I usually use upper triangular matrices.

-B

Report message to a moderator

[Message index]

		Help with Idl+Envi By: MaxA on Fri, 16 July 2010 01:42
		Re: help with idl By: Brian Daniel on Thu, 07 February 2013 10:26
		Re: help with idl By: Brian Daniel on Thu, 07 February 2013 10:26
		Re: help with idl By: Helder Marchetto on Thu, 07 February 2013 06:28
		Re: help with idl By: Helder Marchetto on Thu, 07 February 2013 06:26

Previous Topic:	Re: New IDL 8.2.2 Workbench
Next Topic:	Kronecker product reversal, or division

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 19:33:29 PDT 2025

Total time taken to generate the page: 0.00395 seconds