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% File src/library/base/man/rep.Rd
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% File src/library/base/man/rep.Rd
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% Part of the R package, https://www.R-project.org
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% Part of the R package, https://www.R-project.org
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% Copyright 1995-2015, 2017 R Core Team
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% Copyright 1995-2015, 2017, 2019, 2026 R Core Team
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% Distributed under GPL 2 or later
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% Distributed under GPL 2 or later
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\name{rep}
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\name{rep}
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\alias{rep}
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\alias{rep}
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\alias{rep.factor}
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\alias{rep.factor}
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\alias{rep.POSIXct}
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\alias{rep.POSIXct}
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\alias{rep.POSIXlt}
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\alias{rep.POSIXlt}
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\alias{rep.Date}
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\alias{rep.Date}
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\alias{rep_len}
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\alias{rep_len}
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\title{Replicate Elements of Vectors and Lists}
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\title{Replicate Elements of Vectors and Vector-Like Objects}
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\description{
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\description{
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  \code{rep} replicates the values in \code{x}.  It is a generic
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  \code{rep} replicates the values in \code{x}.  It is a generic
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  function, and the (internal) default method is described here.
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  function, and the (internal) default method is described here.
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  \code{rep.int} and \code{rep_len} are faster simplified versions for
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  \code{rep.int} and \code{rep_len} are faster simplified versions for
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  two common cases.  Internally, they are generic, so methods can be
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  two common cases.  Internally, they are generic, so methods can be
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  defined for them (see \link{InternalMethods}).
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  defined for them (see \link{InternalMethods}).
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  Except if \code{x} is a factor,
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  when internal dispatch for \code{rep.int} and \code{rep_len} fails,
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  there is an attempt to dispatch on the equivalent call to \code{rep}.
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}
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}
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\usage{
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\usage{
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rep(x, \dots)
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rep(x, \dots)
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rep.int(x, times)
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rep.int(x, times)
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}
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}
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\value{
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\value{
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  An object of the same type as \code{x}.
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  An object of the same type as \code{x}.
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  \code{rep.int} and \code{rep_len} return no attributes (except the
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  \code{rep.int} and \code{rep_len} return no attributes (except the
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  class if returning a factor).
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  class and levels if returning a factor).
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  The default method of \code{rep} gives the result names (which will
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  The default method of \code{rep} gives the result names (which will
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  almost always contain duplicates) if \code{x} had names, but retains
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  almost always contain duplicates) if \code{x} had names, but retains
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  no other attributes.
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  no other attributes.
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}
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}