Hello, Is there an R equivalent for "ms" in Splus? Or should I just adapt "nlm"? Thanks! Michael J. Roberts Resource Economics Division, PMT USDA-ERS 202-694-5557 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
R equivalent for "ms" in Splus
2 messages · Michael Roberts, Ben Bolker
No; use nlm, or optim. The only things that ms() does for you that optim() doesn't already do are (1) apply the min log-likelihood criterion to every data point, and (2) return the output in an object of type "ms" that has some methods written for it. optim() seems more flexible in any case. I've written a few methods for a class I call "mle" to return approximate variance-covariance matrices, print summaries, generate confidence ellipses etc. -- all pretty messy but let me know if you're interested. Ben
On Wed, 24 Jan 2001, Michael Roberts wrote:
Hello, Is there an R equivalent for "ms" in Splus? Or should I just adapt "nlm"? Thanks! Michael J. Roberts Resource Economics Division, PMT USDA-ERS 202-694-5557 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
318 Carr Hall bolker at zoo.ufl.edu Zoology Department, University of Florida http://www.zoo.ufl.edu/bolker Box 118525 (ph) 352-392-5697 Gainesville, FL 32611-8525 (fax) 352-392-3704 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._