Thank you for your reply Matthew, There are many things I could say about the myriad difficulties I have had in progressing with R, none worth stating here. For the record I have read the posting guidelines, at least to the extent possible in the time available.
For what its worth, I think I have found a way around this little problem by limiting parameters outside the function using an if(any()) statement. I'll have a look at R-forge. Thanks again, A -- View this message in context: http://n4.nabble.com/nlrq-parameter-bounds-tp1733901p1748666.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.