Sum of the Least Squares
Huaiyu Zhu
hzhu at users.sourceforge.net
Fri Sep 29 20:09:38 EDT 2000
On Fri, 29 Sep 2000 14:21:31 GMT, Gene C <gchiaramonte at yahoo.com> wrote:
>
>Does anyone know where I can find a function to do non-linear least squares
>fit interpolation that is implemented in python? (actual python code, not a
>module implemented in something else) Other curve fitting functions would be
>interesting too.
>
When you say nonlinear least squares, do you have a specific set of bases or
do you want the program to choose it? If the former, it is essentially
linear mathematically (and computationally). It's a one-liner if you use
NumPy.
If the latter, a lot more specifications are needed. In essence you need to
specify a model space and a prior distribution (or equivalently a kernel of
Gaussian measure or a Sobolev norm) in the function space.
I have some old code in Matlab using radial basis functions I always wanted
to convert to Python. Maybe I'll find time this weekend.
I take it that you do not mean to exclude the Numeric package when you say
"not a module".
Huaiyu
--
Huaiyu Zhu hzhu at users.sourceforge.net
Matrix for Python Project http://MatPy.sourceforge.net
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