> Is there a version of apply that returns a list without NULL's? > > I try to remove NULL elements in the following example, but neither > for loops work. Would you please let me know what the correct way is?
Try this function: compact <- function(x) Filter(Negate(is.null), x) compact(x) Hadley -- http://had.co.nz/ ______________________________________________ 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.