vunion | R Documentation |
The base::union
function removes duplicates per algebraic set theory. vunion
does not, and so returns as many duplicate elements as are in either input vector (not the sum of their inputs.) In short, vunion
is the same as vintersect(x,y) + vsetdiff(x,y) + vsetdiff(y,x)
.
vunion(x, y, multiple = TRUE)
x |
A vector or an object which can be coerced to a vector |
y |
A vector or an object which can be coerced to a vector |
multiple |
Should repeated "multiple" items be returned? Default is |
A vector of the union of the two input vectors. If multiple
is set to FALSE
then the value returned is the same as base::union
.
Carl Witthoft
union
, the CRAN package sets
x <- c(1:5,3,3,3,2,NA,NA)
y<- c(2:5,4,3,NA)
vunion(x,y)
vunion(x,y,multiple=FALSE)
union(x,y) #same as previous line
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