setops: Set operations

In YTLogos/dplyr: A Grammar of Data Manipulation

Description

These functions override the set functions provided in base to make them generic so that efficient versions for data frames and other tables can be provided. The default methods call the base versions.

Usage

intersect(x, y, ...)

union(x, y, ...)

union_all(x, y, ...)

setdiff(x, y, ...)

setequal(x, y, ...)

Arguments

x, y	objects to perform set function on (ignoring order)
...	other arguments passed on to methods

Examples

mtcars$model <- rownames(mtcars)
first <- mtcars[1:20, ]
second <- mtcars[10:32, ]

intersect(first, second)
union(first, second)
setdiff(first, second)
setdiff(second, first)

union_all(first, second)
setequal(mtcars, mtcars[32:1, ])

YTLogos/dplyr documentation built on May 20, 2019, 1:44 p.m.