Date: Thu, 12 Mar 1998 09:36:15 -0600 (CST) From: Bill Simpson <wsimpson@uwinnipeg.ca> To: r-help <r-help@stat.math.ethz.ch> Subject: R-beta: nonlinear fitting Thanks very much Douglas for the pointer to nlm. Maybe the "Notes on R" maintainer can add at least a mention of nlm in the section on nonlinear fitting? I never did nonlinear fitting in S-Plus before, so I have nothing to unlearn, but I was hoping someone could show me how to do a least squares fit with nlm. example: x<-c(1,2,3,4,5,6) y<-.3*x^-.6 +.2 y<-y+rnorm(6,0,.01) Please show me how to fit the model y=a*x^b + c by least squares. I would like parameter estimates plus the standard error for each param. (This example could replace the current nonlinear fitting section in "Notes on R") Thanks very much for any help! Bill Simpson -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- 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@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._