[R] Fitting Hastie's principal surfaces in R
mehall at blm.gov
Tue Jan 3 16:55:53 CET 2017
Did you search for the princurve package? Sounds like it may be what you
Mark E. Hall, PhD
Assistant Field Manager
Black Rock Field Office
Winnemucca District Office
On Sun, Jan 1, 2017 at 2:56 AM, Neverstop . <neverstop at hotmail.it> wrote:
> I need to summarize a three-dimensional dataset through a principal
> surface that passes through the middle of the data. Principal surfaces are
> non-linear generalization of the plane created by the first two principal
> components and provide a non-linear summary of p-dimensional dataset.
> Principal surfaces are described in this 1989 article by Hastie and
> Stuetzle: https://web.stanford.edu/~hastie/Papers/Principal_Curves.pdf .
> They were introduced by Trevor Hastie in his Ph.D dissertation:
> I'm looking for a package to fit principal surfaces with R.
> I've come across the package princurve created by TrevorHastie, but it
> allows to fit principal curves only. How can I fit two-dimensional
> principal surfaces in R?
> Thank you.
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