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Student Support Forum: 'FindFit::nrlnum Error Message' topicStudent Support Forum > General > "FindFit::nrlnum Error Message"

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Author Comment/Response
Peter Pein
11/10/12 11:01am

Hi,

tell Mathematica that the parameters are positive:

FindFit[data,{((1-((Log[(1+(xX1/RMSX1))])/(Log[(1+((10^6)/RMSX1))])))*(1/(Log[(Exp[1]+((xX1/aX1)^nX1))]))^mX1),And@@Thread[{RMSX1,aX1,nX1,mX1}>0]},{RMSX1,aX1,nX1,mX1},{xX1}]


{RMSX1->84.1591,aX1->30.279,nX1->4.97656,mX1->0.485415}

hth,
Peter

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Subject (listing for 'FindFit::nrlnum Error Message')
Author Date Posted
FindFit::nrlnum Error Message benz 11/07/12 5:47pm
Re: FindFit::nrlnum Error Message Peter Pein 11/10/12 11:01am
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