minimization routines in R

I spent several hours trying out another function, nlm, which worked
out so much better than optim. The iteration from nlm gives a very
clear picture where the iteration is going while the two algorithms in
optim just wander around. Thought this might be useful to others.

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Jason G. Liao, Ph.D.
Division of Biometrics
University of Medicine and Dentistry of New Jersey
335 George Street, Suite 2200
New Brunswick, NJ 08903-2688
phone 732-235-5429, fax (732) 235-5464
http://www.geocities.com/jg_liao