Thank you for your reply. The equation is derived from Juliano's chapter in Scheiner and Gurevitch (2001) on Functional Responses.
I have tried calling T<-24 and rerunning with no success sadly. -- View this message in context: http://r.789695.n4.nabble.com/NLS-Singular-Gradient-Error-tp2069029p2069149.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.
