| frev {data.table} | R Documentation |
Fast reverse
Description
Similar to rev but faster.
Usage
frev(x)
Arguments
x |
An atomic |
Details
Similar to rev, frev only retains three attributes: names, class, and factor levels.
Value
Returns the input reversed.
Examples
# on vectors
x = setNames(1:10, letters[1:10])
frev(x)
# list
frev(list(1, "a", TRUE))
[Package data.table version 1.17.99 Index]