I don't have any advice except the standard:
Study the original papers by Royston, Altman
and Sauerbrei on fractional polynomials really
carefully. It is evident
from the paper you cited earlier that the main
ideas can get garbled in n th-hand accounts.
It might be useful to plot the predictors
produced by -fracgen- against each other to
keep an eye on their interdependence.
Nick
[email protected]
Suzy
> If you have any recommendations for further reading that
> discusses the underlying issue at hand, please let me know.
>
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