[R] control parameter for Nelder-Mead algorithm in optim()

Weijie Cai wcai11 at hotmail.com
Thu Sep 8 02:22:02 CEST 2005


In manual for optim() function, there are three control parameters for 
Nelder-Mead algorithm: alpha (reflection),beta(contraction) and 
gamma(expansion), but in the original paper, there is another parameter 
delta which controls shrinkage, how can I set this shrink parameter? Or is 
beta actually the same meaning as delta?



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