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Re: Smoothing Splines

Virgil Stokes wrote:
> Does anyone have a Mathematica notebook for calculating "smoothing splines"?
> --V. Stokes
Hi Virgil,

Check Johannes Ludsteck's package, it may fulfill your needs:

"This Mathematica 5.0 Package performs nonparametric spline smoothing 
for time series (called the Hodrick-Prescott-Filter in the econometrics 
literature). In addition to other implementations, the optimum smoothing 
parameter of the model is computed for a stochastic formulation of the 
data generating process."

Hope this helps,

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