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Re: Help in Astronomy /curvefitting [message #84246 is a reply to message #84244]

Sat, 11 May 2013 09:11

Jeremy Bailin
Messages: 618
Registered: April 2008

Senior Member

On 5/11/13 7:10 AM, mrugankakashyap@gmail.com wrote:
> I'm a 4th year B.Tech student doing an astronomy project based on HERSCHEL data. I have hit a wall in IDL programming.
>
> I have 3 images of the same pixel grid size which have to be fitted in a user defined function. I have to use a chi squared approximation to get the values of the unknown parameters of the function. Then I have to plot contour maps of the unknown parameters separately. How do I do he above steps ?
>
> I have been trying different fuctions for the last 3 months to no avail. I would be glad if you could help.
>

Many of us are big fans of Craig Markwardt's curve fitting routines:

http://www.physics.wisc.edu/~craigm/idl/fitting.html

-Jeremy.

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		Re: Help in Astronomy /curvefitting By: Craig Markwardt on Sun, 12 May 2013 00:43
		Re: Help in Astronomy /curvefitting By: Jeremy Bailin on Sat, 11 May 2013 09:11

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