These quoting functions signal to scoped filtering verbs
(e.g. filter_if() or filter_all()) that a predicate expression
should be applied to all relevant variables. The all_vars()
variant takes the intersection of the predicate expressions with
& while the any_vars() variant takes the union with |.
all_vars(expr)any_vars(expr)
A predicate expression. This variable supports unquoting and will be evaluated in the context of the data frame. It should return a logical vector.
This argument is automatically quoted and later
evaluated in the context of the data
frame. It supports unquoting. See
vignette("programming") for an introduction to these concepts.
funs() and vars() for other quoting functions that you
can use with scoped verbs.