comp.lang.idl-pvwave archive: archive » CURVFIT with XY error

Home » Public Forums » archive » CURVFIT with XY error

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

Re: CURVFIT with XY error [message #90190 is a reply to message #88466]

Mon, 09 February 2015 11:42

wlandsman
Messages: 743
Registered: June 2000

Senior Member

You might also look at the code MPFITEXY by Michael Willliams to apply MPFIT to linear models with errors in both coordinates.

http://user.astro.columbia.edu/~williams/mpfitexy/

But again this does apply to general nonlinear models. --Wayne

On Wednesday, April 30, 2014 at 12:01:28 AM UTC-4, Craig Markwardt wrote:
> On Sunday, April 27, 2014 5:31:55 PM UTC-4, Amin Farhang wrote:
>>
>> Is there any replacing routine for CURVFIT which was able to do a non-linear least squares fit to a user-supplied function by considering both X and Y error?
>
> Not in IDL for the general case. Numerical recipes does give an algorithm for errors in both variables if the model function is purely linear.
>
> Craig

Report message to a moderator

[Message index]

		CURVFIT with XY error By: amin farhang on Sun, 27 April 2014 14:31
		Re: CURVFIT with XY error By: Craig Markwardt on Tue, 29 April 2014 21:01
		Re: CURVFIT with XY error By: wlandsman on Mon, 09 February 2015 11:42
		Re: CURVFIT with XY error By: brubaker.phil on Mon, 09 February 2015 10:05
		Re: CURVFIT with XY error By: Craig Markwardt on Mon, 09 February 2015 10:10
		Re: CURVFIT with XY error By: brubaker.phil on Tue, 10 February 2015 08:42
		Re: CURVFIT with XY error By: dg86 on Tue, 10 February 2015 09:16
		Re: CURVFIT with XY error By: Russell[1] on Tue, 10 February 2015 10:33
		Re: CURVFIT with XY error By: Craig Markwardt on Tue, 10 February 2015 11:11
		Re: CURVFIT with XY error By: brubaker.phil on Fri, 13 February 2015 11:30

Previous Topic:	IDL array subscripting issue
Next Topic:	mpfitfun and complex data

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 13:53:41 PDT 2025

Total time taken to generate the page: 0.00420 seconds