I thought it would be possible to do PLS in Stata. Although a relative newcomer to Stata, I'm not surprised to hear that it is possible. But to the original point, I thought it might be easier for James to use available software (especially given his comment re: knowledge of statistics). Just my two cents. :-)
Jim
-----Original Message-----
From: A.J. Rossini [mailto:[email protected]]
Sent: Mon 12/16/2002 12:55 PM
To: [email protected]
Cc:
Subject: Re: st: RE: RE: Chemometrics functions
>>>>> "nick" == Nick Cox <[email protected]> writes:
nick> James Hesford
>> For partial least squares (PLS) I have used PLSGraph by
>> Wynne Chin of the University of Houston. The product is in
>> beta release and it appears to have fallen off his radar
>> screen. From what I know of Stata, it may be possible but
>> not really feasible.
nick> I don't know this distinction means.
nick> There is no reason I can see why PLS
nick> would not be programmable in Stata. However,
nick> it is not clear that anyone has done it.
I'll take the opposite tact - it is clear that it can be done in
Stata. Most of the tools (matrix decompositions) exist. Just do it
:-).
best,
-tony
--
A.J. Rossini Rsrch. Asst. Prof. of Biostatistics
U. of Washington Biostatistics [email protected]
FHCRC/SCHARP/HIV Vaccine Trials Net [email protected]
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