[R] please help on frag polynoms

[Thomas Lumley]

On Thu, 10 Jul 2003 joerg-burmester at gmx.net wrote:

> hi there,
>
> can anyone help me on the topic of frag polynoms?

I don't think there is anything currently available for fractional
polynomials along the lines of -fracpoly- in Stata.

You could construct an equivalent fairly easily using step(), or you could
use local polynomials or splines.

	-thomas

Thomas Lumley			Assoc. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle