[R] logistic regression / MASS / ms --> optim(method="L-BFGS-B") translation
c.hampel at gmx.net
Fri Mar 1 18:10:07 CET 2002
I am a newbie using R and I have a problem as follows:
I'd like to use R for a logistic model. I found the MASS.3rd/p.269 using
the in S-PLUS implemented function "ms" that is not available in R.
I've heard that instead of "ms" or the equal "nlminb" the
"optim(method="L-BFGS-B")" can be used. But it is not easy for me to
translate the term from
fit<-optim(....., method="L-BFGS-B", ... .... ...... )
to get the model descibed in MASS running in R!
Thanks to everyone who can help me.
Christoph Hampel - c.hampel at gmx.net
Ingolstadt, School of Business, Germany
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