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2009 Oct 07
1
2 questions about mle() /optim() function in stats4
Dear All,
There are two things about mle() that I wasn't so sure.
1) can mle() handle vector based parameter? say
ll<-function(theta=rep(1,20)){..............}
I tried such function, it worked for "optim" but not for "mle".
2) is there a general suggestion for the maximum number of parameters
allowed to use in mle() or optim()?
Thank you.
Regards,
MJO