> (1) An exact solution can be derived quickly Please disregard note (1) above. I'm not sure if it was right.
And one more comment: The conjugate gradient method is an established method. So the question is, is the optim function applying this method or not... And assuming that it is, then R is definitely doing what it should be doing. If not, then I guess it would be a bug... ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
