Dear all,
I would like to know what family of orthogonal polynomials is used in the
function poly(). I am using poly(X, 2) in a PLS regression, and I need the
formula used to calculate the orthogonal polynomials to get back to the effect
of the X variable.
The reference cited in the help page for poly() is not available in my
institution, and I would appreciate any indication or reference on the family
used.
Thanks for your help,
Marie
--
Marie CHARRU
PhD student
UMR 1092 INRA/AgroParisTech - ENGREF
Wood Ressource Laboratory (LERFoB)- team Forest Ecology
14, rue Girardet - CS 14216 - 54042 Nancy - France
Tel.:(+33)3.83.39.68.80 - Fax.:(+33)3.83.30.22.54
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