builtin vs. closure
On 15/03/2009 12:00 AM, Edna Bell wrote:
Dear R Gurus: I'm working slowly through "R Programming for Bioinformatics", which is really interesting! Anyway, my question now is: what determines if a function is a builtin vs. a closure, please?
Closure is the normal type of function written in R code. The other special types are built in to R; users can't create them except by modifying the R source code. For details see the R Internals manual. Duncan Murdoch
For instance:
typeof(sqrt)
[1] "builtin"
typeof(mean)
[1] "closure" Thanks, Edna Bell
______________________________________________ R-help at 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.