This helper is intended to provide equivalent semantics to
select()
. It is used for instance in scoped summarising and
mutating verbs (mutate_at()
and summarise_at()
).
vars(...)
... | Variables to include/exclude in mutate/summarise. You
can use same specifications as in These arguments are automatically quoted and later
evaluated in the context of the data
frame. They support unquoting. See
|
---|
Note that verbs accepting a vars()
specification also accept a
numeric vector of positions or a character vector of column names.
all_vars()
and any_vars()
for other quoting
functions that you can use with scoped verbs.