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Re: Newbie's question [message #45912 is a reply to message #45910]

Thu, 20 October 2005 08:10

Paolo Grigis
Messages: 171
Registered: December 2003

Senior Member

While it is surely a very good thing to use MPFIT instead
of CURVEFIT, this won't help solving your NaN problem, since
you were applying a "bad" function on your negative data.

Change your model function to something which gives
real results also for negative inputs, and then you should
be able to successfully fit your data (no matter what
fitting routine you are using).

Ciao,
Paolo

ChiChiRuiz@gmail.com wrote:
> Thank you for your inputs. I'll try poly_fit and find MPFIT!
>

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[Message index]

		Re: Newbie's question By: JD Smith on Thu, 20 October 2005 17:07
		Re: Newbie's question By: James Kuyper on Thu, 20 October 2005 15:08
		Re: Newbie's question By: ChiChiRuiz@gmail.com on Thu, 20 October 2005 13:18
		Re: Newbie's question By: James Kuyper on Thu, 20 October 2005 11:41
		Re: Newbie's question By: Paolo Grigis on Thu, 20 October 2005 08:10
		Re: Newbie's question By: Paul Van Delst[1] on Thu, 20 October 2005 07:10
		Re: Newbie's question By: ChiChiRuiz@gmail.com on Thu, 20 October 2005 06:53
		Re: Newbie's question By: Paul Van Delst[1] on Thu, 20 October 2005 06:44
		Re: Newbie's question By: peter.albert@gmx.de on Thu, 20 October 2005 04:02
		Re: Newbie's question By: Paolo Grigis on Thu, 20 October 2005 00:33
		Re: Newbie's question By: ChiChiRuiz@gmail.com on Fri, 21 October 2005 09:58
		Re: Newbie's question By: James Kuyper on Fri, 21 October 2005 05:55

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