I tested the "optim" function and that is returning non-negative parameter values (meaning they are bound by the lower limits), but I think those are the starting estimates for the nlsList model which is then finding negative values for the solution.
----- In theory, practice and theory are the same. In practice, they are not - Albert Einstein -- View this message in context: http://r.789695.n4.nabble.com/Lower-bounds-on-selfStart-function-not-working-tp3999231p4001986.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list 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.
