d STB-28 sg45v6.  Maximum likelihood ridge regression.
d STB insert by Robert L. Obenchain, Eli Lilly and Company.
d Updated to work with Stata 6 by William Gould, StataCorp.
d
d Note by William Gould:  This probram was originally published in STB-28.
d A change in Stata 6 broke the program and I have attempted to fix it.
d
d After installation, see help ^rxrcrlq^, help ^rxridge^, help
d ^rxrmaxl^, help ^rxrmkdta^, help ^rxrrisk^, and help ^rxrsimu^.
f rx/rxrcrlq.ado
f rx/rxrcrlq.hlp
f rx/rxridge.ado
f rx/rxridge.hlp
f rx/rxrmaxl.ado
f rx/rxrmaxl.hlp
f rx/rxrmkdta.ado
f rx/rxrmkdta.hlp
f rx/rxrrisk.ado
f rx/rxrrisk.hlp
f rx/rxrsimu.ado
f rx/rxrsimu.hlp
f rx/rx_rn.ado