Mathematica 9 is now available
Student Support Forum
-----
Student Support Forum: 'Using FindFit with another function.' topicStudent Support Forum > General > Archives > "Using FindFit with another function."

Next Comment >Help | Reply To Topic
Author Comment/Response
Asuquo
09/29/08 1:46pm

Hi All,
I have a problem that I need help with.
I defined my function to be a Minimum value of another function while keeping some parameters constant. I now use my defined function to fit for those parameters.
The error I have says:
FindMinimum::nrnum: The function value Which[10.<-1.61978 \
n^(1/3)+(<<1>>)^(1/3)/(2^(2/3) \
\[Pi]^(1/3)),wct1[n,\[Mu],\[Sigma]3,dmin[n]],dmin[n]<=d<=dmax[n],wct1[\
n,\[Mu],\[Sigma]3,d],d>dmax[n],wct1[n,\[Mu],\[Sigma]3,dmax[n]]] is \
not a real number at {d} = {10.}. >>
The notebook is attached.
If I define the values of the parameters, I can plot my defined function, but it can't fit to give me the correct values of the parameters.

Any help will be appreciated.
Thank you in advance

Asuquo

Attachment: Findfit.nb, URL: ,

Subject (listing for 'Using FindFit with another function.')
Author Date Posted
Using FindFit with another function. Asuquo 09/29/08 1:46pm
Re: Using FindFit with another function. Peter Pein 10/02/08 5:29pm
Next Comment >Help | Reply To Topic