Date:         Fri, 29 Sep 2006 08:43:23 -0400
Reply-To:     Peter Flom <Flom@NDRI.ORG>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Peter Flom <Flom@NDRI.ORG>
Subject:      Re: PROC TRANSREG question
Comments: To: Wensui Liu <liuwensui@gmail.com>
In-Reply-To:  <1115a2b00609281305s5ccdd594p6950f590604f7350@mail.gmail.com>
Content-Type: text/plain; charset=US-ASCII

>>> "Wensui Liu" <liuwensui@gmail.com> 9/28/2006 4:05 pm >>> wrote
<<<
I think you are getting what you asked for.
for 11 cases, you want to fit a b-spline with nknot = 3 (which means 4
basis) and degree = 3 (which is default in SAS). So what do you
expect?
>>>

What I would like is something so that I can recreate the cubic
equations that apply between each pair of knots, and the location of the
knots.

SAS Tech Support suggested that this requires use of bspline instead of
spline, but the output from that, while more like what I wanted, is
still not transparent (although I have not yet studied it in detail).

Peter