vsetdiff {vecsets}

Find all elements in first argument which are not in second argument.

Description

Finds all elements in first argument which are not in the second argument. Unlike the base::setdiff function, if the vectors have repeated elements in common, only the "excess" number of a given element are returned.

Usage

vsetdiff(x, y, multiple = TRUE)

Arguments

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 TRUE; if set to FALSE, vintersect acts like the base::intersect function.

Value

A vector of all elements in x which are not in y. If multiple=FALSE is set, only unique values are returned.

Author(s)

Carl Witthoft

See Also

setdiff, the CRAN package sets

Examples

x <- c(1:5,3,3,3,2,NA,NA)
y<- c(2:5,4,3,NA)
vsetdiff(x,y)
vsetdiff(x,y,multiple=FALSE)
setdiff(x,y) # same as previous line
vsetdiff(y,x) #note the asymmetry