[R] Orthogonal polynomials and poly
Prof Brian Ripley
ripley at stats.ox.ac.uk
Thu Jul 3 13:59:49 CEST 2008
On Tue, 1 Jul 2008, giovanni parrinello wrote:
> Dear All,
> I have found in the poly help this sentence:
> The orthogonal polynomial is summarized by the coefficients, which can be
> used to evaluate it via the three-term recursion given in Kennedy & Gentle
> (1980, pp. 343?4), and used in the predict part of the code.
> My question: which type of orthogonal polynomials are used by this function?
> Hrmite, legendre..
>From the help page:
Returns or evaluates orthogonal polynomials of degree 1 to
'degree' over the specified set of points 'x'.
If you don't know what orthogonal polynomials over a finite set are,
please look them up in the references given. Hermite (sic), Legendre
(sic) etc are for continuous variables with inner-products given by
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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