is.element(el, set) el %in% set
bdVector of potential elements of the set. This should be
an atomic vector (not a list) and should be the same type
of data as
set.
bdLogical the length of
el. Its ith value is
TRUE
if
el[i] is in
set
el %in% set means the same as
is.element(x,set)
but some find it more convenient to type. Note that in a formula object, as used in the
aov()
function, it means that effects are nested.
is.element(c("Belgium", "Rhode Island"), state.name)
# expect to get
# [1] F T
c("Belgium", "Rhode Island") %in% state.name
# expect the same answer