[R] nlm() vs. nls()

Timur Elzhov Timur.Elzhov at jinr.ru
Wed Dec 11 16:36:05 CET 2002


Dear R-experts!

I've been using nls() for a while for fitting my data, approx 10,000
points long.  Now, I have to use low-level minimizing functions to get
more control on fitting process, so I tried nlm().  And, the fitting
process became *much* more slower!

The question is: why? why nls() works faster?

Thank you very much!
Timur.




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