Arguments
- S1
A Set
- S2
A Set
Value
Returns the difference S1 - S2.
Details
Both S1 and S2 must be Sets.
Examples
# Build two sparse sets
S <- Set$new(attributes = c("A", "B", "C"))
S$assign(A = 1, B = 1)
T <- Set$new(attributes = c("A", "B", "C"))
T$assign(A = 1)
# Difference
S %-% T
#> {B}