comp.lang.idl-pvwave archive
Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado

Home » Public Forums » archive » least square matrix
Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend 
Return to the default flat view Create a new topic Submit Reply
Re: LEAST SQUARE MATRIX [message #43041 is a reply to message #43027] Wed, 09 March 2005 08:53 Go to previous message
James Kuyper is currently offline  James Kuyper
Messages: 425
Registered: March 2000
Senior Member
Matthias Demuzere wrote:
> Hi,
>
> Could anyone help me with the construction of a least square matrix in IDL
> indicated by A
>
> where i,j =1, 2,...,N
>
> Tips, idees, everything is welcome...

Well, the least square matrix in IDL would probably be:

bytarr(1,9223372036854775807)

However, I suppose that most systems won't have enough memory to create
it. :-)

You need to make your question more specific. You've left out a lot of
details, starting with what 'i', 'j', and 'N' mean. However, that's just
the beginning. "least squares" is a criterion that is often used to fit
a model to some data. However, to answer your question we need to know
at least a little bit about what kind of model and what kind of data
you're looking at.
[Message index]
 
Read Message
Read Message
Read Message
Previous Topic: Re: Extract an image
Next Topic: netCDF _FillValue attributes

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Fri Oct 10 13:45:14 PDT 2025

Total time taken to generate the page: 1.12167 seconds