"Template" for model.matrix functions

Sun, Jul 2, 2006 5:24 PM #

Hello!

I would like to write a function that would create a (part) of a model
matrix to be used in lm() like functions i.e

lm(y ~ myFunc(x))

Where can I find a good example or a template for this as well as for
predict method?

Thanks!

Lep pozdrav / With regards,
    Gregor Gorjanc

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University of Ljubljana     PhD student
Biotechnical Faculty
Zootechnical Department     URI: http://www.bfro.uni-lj.si/MR/ggorjan
Groblje 3                   mail: gregor.gorjanc <at> bfro.uni-lj.si

SI-1230 Domzale             tel: +386 (0)1 72 17 861
Slovenia, Europe            fax: +386 (0)1 72 17 888

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"One must learn by doing the thing; for though you think you know it,
 you have no certainty until you try." Sophocles ~ 450 B.C.

Thomas Lumley

Mon, Jul 3, 2006 9:21 AM #

On Mon, 3 Jul 2006, Gregor Gorjanc wrote:

I would look at bs() and ns() in the splines package.

 	-thomas