Melakukan penyatuan himpunan, perpotongan, selisih (asimetris!), persamaan dan keanggotaan pada dua vektor.
union(x, y)
intersect(x, y)
setdiff(x, y)
setequal(x, y)<p></p><p>is.element(el, set)</p>
| Parameter | Deskripsi |
|---|---|
x, y, el, set |
vectors (of the same mode) containing a sequence of items (conceptually) with no duplicated values. |
# NOT RUN {
(x <- c(sort(sample(1:20, 9)), NA))
(y <- c(sort(sample(3:23, 7)), NA))
union(x, y)
intersect(x, y)
setdiff(x, y)
setdiff(y, x)
setequal(x, y)
## True for all possible x & y :
setequal( union(x, y),
c(setdiff(x, y), intersect(x, y), setdiff(y, x)))
is.element(x, y) # length 10
is.element(y, x) # length 8
# }