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problem with nls starting values

Ben Bolker 
Bert Gunter <gunter.berton <at> gene.com> writes:
However, I will also point out that (from my experience and
others') nls is not the most robust optimizer ... you might consider
nlsLM (in the minpack.lm package), nls2 package, and/or doing nonlinear
least-squares by brute force using bbmle::mle2 as a convenient wrapper
for optim() or optimx().

  cheers
    Ben Bolker

Thread (9 messages)

Ben Bolker problem with nls starting values Sep 26 Benedikt Gehr problem with nls starting values Sep 27 Bert Gunter problem with nls starting values Sep 27 Benedikt Gehr problem with nls starting values Sep 27 Berend Hasselman problem with nls starting values Sep 27 Benedikt Gehr problem with nls starting values Sep 27 Bert Gunter problem with nls starting values Sep 27 Ben Bolker problem with nls starting values Sep 27 Bert Gunter problem with nls starting values Sep 27