MathGroup Archive 2006

[Date Index] [Thread Index] [Author Index]

Search the Archive

how to fit data with this specified functional form?

Dear all,
  I wanna fit my data with the function x^b where b is the parameter to
be determined. But mathematica just return me:
Input[2]:=     FindFit[data, x^b, b,x]
    "The Jacobian is not a matrix of numbers at {b} = {1.`}"
Output[2]:=   {b -> 1.}

I tried to fit another data with the same function x^b, this problem
dissapears, so I guess that's due to my data is quite linear?
but...How to avoid this problem and get a proper fit with the function
x^b ?  Thanks for any ideas!
     Best   Regards.          Bryan

  • Prev by Date: Re: Getting Color *names* as strings?
  • Next by Date: Re: Getting Color *names* as strings?
  • Previous by thread: Re: Pattern Matching for Exponentials
  • Next by thread: Re: Getting Color *names* as strings?