These infix operators test whether any or all left-hand side elements occur
in the right-hand side.
Usage
lhs %all_in% rhs
lhs %any_in% rhs
Details
%all_in% returns TRUE if all elements of left operand (lhs) are found
in right operand (rhs). Equivalent to all(lhs %in% rhs).
%any_in% returns TRUE if any elements of left operand (lhs) are found
in right operand (rhs). Equivalent to any(lhs %in% rhs).
Examples
maybe_states <- c("Idaho", "Illinois", "North Tuba", "Maine")
maybe_states %any_in% state.name # TRUE
#> [1] TRUE
maybe_states %all_in% state.name # FALSE
#> [1] FALSE
rm(maybe_states)
