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...s, I'm in the process of developing some notes on optimizing likelihoods for a class I'm teaching next term. Can anyone offer examples showing the optimization of a complex likelihood function that they wouldn't mind sharing using optim(). I've adapted some of the S-plus likelihood examplesfrom the ``Guide to Statistics" and the Zip example from ``Statistical Models in S". Any additional examples that people wouldn't mind sharing would be greatly appreciated. Cheers, Calvin -- ==================== Calvin L. Williams, Ph.D. ==================== Department of Mathe...