Dear Graham, On 16 June 2013 02:08, Graham McDannel <graham.mcdan...@gmail.com> wrote: > I am attempting to optimize a function I have developed using optim. > > I am getting the below error message: > > Error in n < 1: 'n' is missing >
I suspect a function requires an argument named n, and you didn't pass one. Either in your objective function or in optim. See blow example that produce a similar error: > f <- function(n) { + if(n <1) { + print("one") + } + } > f() Error in n < 1 : 'n' is missing Best Wishes, -m ______________________________________________ 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.