comp.lang.idl-pvwave archive: archive » least square error for a regression

Home » Public Forums » archive » least square error for a regression

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

least square error for a regression [message #41043]

Wed, 15 September 2004 15:28

yaj
Messages: 6
Registered: July 2004

Junior Member

Hello,
I am fitting a function of the form
ASin(wt + theta) + constant to a set of points. Instead of a readymade
fitting routine from IDL (to avoid any potential problems with small numbers
later), I use the three linear equations to minimize the least square error,
then use an IDL function to solve the matrix equation. Could someone suggest
a simple way to calculate the least squares error and goodness of fit using
some higher level IDL functions ?
Thanks in advance
Y. Bhattacharya
yajnaval_at-hotmail

Report message to a moderator

[Message index]

least square error for a regression

By: yaj on Wed, 15 September 2004 15:28

Previous Topic:	Re: Saving Color Tables
Next Topic:	least square error for a sinusoid

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Nov 29 12:16:28 PST 2025

Total time taken to generate the page: 0.48567 seconds