Ajay Askoolum <aa2e72e <at> yahoo.co.uk> writes: > > Michael, thank you, especially for the link. I think I understand. > > The vocabulary is so different! I know 'closure' as 'user-defined function'. >
Not quite. All (??) user-defined functions are closures, but lots of non-user-defined functions are closures too ... > typeof(mean) [1] "closure" > typeof(sum) [1] "builtin" > typeof(apply) [1] "closure" ______________________________________________ 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.
