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Programming > Idl-pvware > MPFit: changing...
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MPFit: changing the cost function

by thomas.launey@[EMAIL PROTECTED] Feb 6, 2008 at 09:22 PM

Hello,

I am using Craig Markwardt's MPFit with great enjoyement but I would
like to change the way the model error is calculated. MPfit minimizes
the Chi^2 but for what I want to do, I would prefer minimizing "the
largest relative error"  rather than the "mean relative error".
I haven't found any hint in the do***entation about "user-defined cost
function". Shall I modify MPfit itself to add this option or did I
miss something?
Thanks,
Thomas

T. Launey
RIKEN Brain Science Institute
 




 2 Posts in Topic:
MPFit: changing the cost function
thomas.launey@[EMAIL PROT  2008-02-06 21:22:31 
Re: MPFit: changing the cost function
Craig Markwardt <craig  2008-02-11 08:42:57 

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tan12V112 Thu Jul 24 22:03:24 CDT 2008.