Hi- I am using the following code:
start=c(alpha=0.4,beta=0.4) warm.10<-nls(warming$umoles60~alpha*exp(beta*warming$T10cm),start = start,data=warming,na.action=na.omit) This code works for other columns in my dataset that are similar to $T10cm but the code does not work for this particular column (T10cm). I am assuming this is because warming$T10cm contains NAs. I have tried just about everything I can think of to remedy this problem (na.action=na.omit; na.rm=T; creating a new space such that warmnoNA<-warming$T10cm!="NA") but with no success. With the original code above, get the following error: Error in numericDeriv(form[[3L]], names(ind), env) : Missing value or an infinity produced when evaluating the model In addition: Warning message: In .swts * (lhs - rhs) : longer object length is not a multiple of shorter object length Any ideas? Thanks, Elizabeth -- View this message in context: http://r.789695.n4.nabble.com/nls-NAs-tp4645935.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.
