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mpfitfun and complex data [message #90239] Fri, 13 February 2015 04:09 Go to next message
Pom is currently offline  Pom
Messages: 13
Registered: August 2010
Junior Member
Hello,

I recall a long while back there is a note from someone (I can not find that comment anymore) mentioned that mpfitfun.pro from Craig Markwardt does not support complex data set? Is this true?

Sorry, if I was wrong but thanks for the comment.

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Re: mpfitfun and complex data [message #90240 is a reply to message #90239] Fri, 13 February 2015 04:31 Go to previous messageGo to next message
Helder Marchetto is currently offline  Helder Marchetto
Messages: 520
Registered: November 2011
Senior Member
On Friday, February 13, 2015 at 1:09:41 PM UTC+1, larry wrote:
> Hello,
>
> I recall a long while back there is a note from someone (I can not find that comment anymore) mentioned that mpfitfun.pro from Craig Markwardt does not support complex data set? Is this true?
>
> Sorry, if I was wrong but thanks for the comment.

Hi,
this is the post you are looking for:
https://groups.google.com/d/msg/comp.lang.idl-pvwave/Q2TaJS- ByLs/uda-kcyNBYgJ

HTH,
Helder

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Re: mpfitfun and complex data [message #90241 is a reply to message #90240] Fri, 13 February 2015 05:01 Go to previous messageGo to next message
Mats Löfdahl is currently offline  Mats Löfdahl
Messages: 263
Registered: January 2012
Senior Member
Den fredag 13 februari 2015 kl. 13:31:28 UTC+1 skrev Helder:
> On Friday, February 13, 2015 at 1:09:41 PM UTC+1, larry wrote:
>> Hello,
>>
>> I recall a long while back there is a note from someone (I can not find that comment anymore) mentioned that mpfitfun.pro from Craig Markwardt does not support complex data set? Is this true?
>>
>> Sorry, if I was wrong but thanks for the comment.
>
> Hi,
> this is the post you are looking for:
> https://groups.google.com/d/msg/comp.lang.idl-pvwave/Q2TaJS- ByLs/uda-kcyNBYgJ
>
> HTH,
> Helder

I didn't exactly bring it up as a problem, more as a mistake I had made and what the symptom was...

And it was mpfit, not mpfitfun.

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Re: mpfitfun and complex data [message #90254 is a reply to message #90239] Sat, 14 February 2015 15:05 Go to previous message
Craig Markwardt is currently offline  Craig Markwardt
Messages: 1869
Registered: November 1996
Senior Member
On Friday, February 13, 2015 at 7:09:41 AM UTC-5, larry wrote:
> Hello,
>
> I recall a long while back there is a note from someone (I can not find that comment anymore) mentioned that mpfitfun.pro from Craig Markwardt does not support complex data set? Is this true?
>
> Sorry, if I was wrong but thanks for the comment.

MPFIT does least squares minimization on real numbers, not complex numbers. What do you expect to be minimized in the complex domain? (I think I know the answer, but maybe I don't make the same assumptions as others.)

Craig

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