rev | R Documentation |
rev
provides a reversed version of its argument.
ref_rev(x) ## S3 method for class 'Deque' ref_rev(x) ## S3 method for class 'Deque' rev(x)
x |
|
rev
uses copy semantics while ref_rev
works by reference,
that is, it reverse all elements in place.
For Deque
, an object of class Deque
base::rev()
d = deque(a = 1, b = 2, 3) rev(d) print(d) ref_rev(d) print(d)
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