//R
//R/chr.R
//R/dbl.R
//R/err.R
//R/int.R
//R/key.R
//R/lgl.R
//R/data.R
//R/date.R
//R/dttm.R
//R/join.R
//R/list.R
//R/name.R
//R/ncol.R
//R/nrow.R
//R/null.R
//R/prob.R
//R/grepl.R
//R/named.R
//R/names.R
//R/nchar.R
//R/props.R
//R/rbind.R
//R/tzone.R
//R/utils.R
//R/length.R
//R/levels.R
//R/scalar.R
//R/sorted.R
//R/unique.R
//R/unused.R
//R/vector.R
//R/checkor.R
//R/classes.R
//R/integer.R
//R/logical.R
//R/nlevels.R
//R/numeric.R
//R/pattern.R
//R/unnamed.R
//R/colnames.R
//R/function.R
//R/inherits.R
//R/internal.R
//R/character.R
//R/attributes.R
//R/homogenous.R
//R/environment.R
//R/intersection.R
//R/missing-names.R
//R/new-duplicated.R
//R/missing-colnames.R