I'm using S-Plus 4.5 under Windows 95.
I used a polynomial fit (from the 2-D plot palette) with the following
parameters on the Curve Fitting tab:
Curve Fit Type = Power
Poly. Order = 3
I assume the resulting equation is something like
y = a * x ^ (b + c * ln(x) + d * (ln(x)^2))
but I'm not sure if (or how) I should put this into an lm() or glm() in
order to get the coefficients out.
I'll summarize and post any replies. Thanks.
Cheryl G. Howard, D.Sc.
Senior Researcher
Thomson Labs
Rockville, MD
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