Greetings,
I am doing many iterations of simple optimizations using the
L-BFGS-B method of optim() in R-1.6.2. Very rarely (about 1
in every 100,000 trials), a process will encounter some
problem in optim that triggers the error message "non-finite
value supplied by optim". From the C code, it appears that
this message could be emitted in several different places.
I have tried to capture the exact conditions that cause this
error via setting options(error) to call dump.frames(). I've
gotten a frame dump or two now, and so I believe I have a few
sets of guilty function arguments. However, when I call
optim() with these arguments, I cannot make it crash. Am I
wrong to have expected to be able to reproduce the problem in
this manner? Any suggestions would be much appreciated!
Thanks,
Andy
--
Andy Jacobson
[EMAIL PROTECTED]
Program in Atmospheric and Oceanic Sciences
Sayre Hall, Forrestal Campus
Princeton University
PO Box CN710 Princeton, NJ 08544-0710 USA
Tel: 609/258-5260 Fax: 609/258-2850
______________________________________________
[EMAIL PROTECTED] mailing list
https://www.stat.math.ethz.ch/mailman/listinfo/r-help
