[R] Cochrane-Orcutt method

Liaw, Andy andy_liaw at merck.com
Thu Jan 10 17:55:25 CET 2002


John,

I'm simply saying that if I expect the students to do it correctly, that I
ought to expect myself to do it correctly as well.  If you don't think this
comment applies to your situation, then by all means ignore what I've said.

Cheers,
Andy

> -----Original Message-----
> From: John Janmaat [mailto:john.janmaat at acadiau.ca]
> Sent: Thursday, January 10, 2002 11:49 AM
> To: Liaw, Andy
> Cc: 'John Janmaat'; r-help at stat.math.ethz.ch
> Subject: Re: [R] Cochrane-Orcutt method
> 
> 
> "Liaw, Andy" wrote:
> > 
> > > I'm teaching an undergraduate econometrics class.  ML is 
> a little more
> > > than they are up to at this level, and the 
> Cochrane-Orcott approach is
> > > an easily understandable itterative procedure.  Thus, the 
> reason is
> > > historical.  I want a canned procedure to be available to
> > > verify results
> > > of the student calculations, rather than running the risk 
> that I do it
> > > incorrectly.
> > >
> > > Thanks,
> > >
> > > John.
> > 
> > Sorry for saying this, but this is like saying ``I'd like 
> to have a canned
> > t-test procedure so I can check that the students do it 
> correctly, because
> > I'm afraid I may do it incorrectly''.  I hope none of your 
> students are
> > subscribed to this list...
> > 
> > Andy
> 
> I'm confused.  I'm human, I may be an instructor, but that 
> does not mean
> I don't mess up.  From time to time I make calculation errors 
> or coding
> errors - even with simple things like t-tests.  I want to catch these
> before I incorrectly tell a student that they are wrong.  Are you
> asserting that if I make mistakes I should not teach, or are you just
> joking with me?
> 
> John.
> -- 
> ==========================================
> John Janmaat
> Department of Economics
> Acadia University, Wolfville, NS, B0P 1X0
> (902)585-1461
> 
> All opinions stated are personal, unless
> otherwise indicated.
> 

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