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% File src/library/base/man/length.Rd
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% File src/library/base/man/length.Rd
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% Part of the R package, http://www.R-project.org
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% Part of the R package, http://www.R-project.org
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% Copyright 1995-2012 R Core Team
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% Copyright 1995-2012 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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\newcommand{\CRANpkg}{\href{http://CRAN.R-project.org/package=#1}{\pkg{#1}}}
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\name{length}
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\name{length}
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\alias{length}
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\alias{length}
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\alias{length<-}
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\alias{length<-}
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\alias{length<-.factor}
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\alias{length<-.factor}
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\title{Length of an Object}
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\title{Length of an Object}
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  names, which are adjusted (and if necessary extended by \code{""}).
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  names, which are adjusted (and if necessary extended by \code{""}).
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}
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}
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\section{Warning}{
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\section{Warning}{
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  Package authors have written methods that return a result of length
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  Package authors have written methods that return a result of length
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  other than one (\pkg{Formula}) and that return a vector of type
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  other than one (\CRANpkg{Formula}) and that return a vector of type
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  \code{\link{double}} (\pkg{Matrix}), even with non-integer values
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  \code{\link{double}} (\CRANpkg{Matrix}), even with non-integer values
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  (earlier versions of \pkg{sets}).  As from \R 2.15.2, where a single
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  (earlier versions of \CRANpkg{sets}).  As from \R 2.15.2, where a
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  double value is returned that can be represented as an integer it is
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  single double value is returned that can be represented as an integer
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  returned as a length-one integer vector.
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  it is returned as a length-one integer vector.
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  As from \R 3.0.0, lengths can be returned as double in base \R.
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  As from \R 3.0.0, lengths can be returned as double in base \R.
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}
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}
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\seealso{\code{nchar} for counting the number of characters in
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\seealso{\code{nchar} for counting the number of characters in