documentation improved using new features of roxygen2
fixed namespacing issue which lead to lost labels when subsetting the results of *lply
colwise
automatically strips off split variables.
rlply
now correctly deals with rlply(4, NULL)
(thanks to bug report from Eric Goldlust)
rbind.fill
tries harder to keep attributes, retaining the attributes from the first occurrence of each column it finds. It also now works with variables of class POSIXlt
and preserves the ordered status of factors.
arrange
now works with one column data frames