I wrote:
"Fit a flexible function to the covariate with one of Patrick Royston's
commands -mvrs- (multivariate restricted splines) or -mfp- (
multivariate fractional polynomials)."
I should have read Paul's handout more carefully (
http://www2.le.ac.uk/Members/pl4/slides/Stata-UK-2009-handout.pdf)
On page 23, he shows a good example of using his own -rcsgen- (from
ssc) to generate restricted splines for a covariate. I apologize for
the omission. On the subject of corrections, the "m" in "-mvrs-" and
in "-mfp-" stands for "multivariable", not "multivariate".
-Steve
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