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  the generalized Levenshtein edit distance (the minimal possibly
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  the generalized Levenshtein edit distance (the minimal possibly
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  weighted number of insertions, deletions and substitutions needed to
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  weighted number of insertions, deletions and substitutions needed to
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  transform one string into another).
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  transform one string into another).
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}
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}
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\usage{
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\usage{
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agrep(pattern, x, max.distance = 0.1, costs = NULL,
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agrep(pattern, x, max.distance = 0.1, costs = NULL,
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      ignore.case = FALSE, value = FALSE, fixed = TRUE,
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      ignore.case = FALSE, value = FALSE, fixed = TRUE,
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      useBytes = FALSE)
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      useBytes = FALSE)
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}
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}
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\arguments{
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\arguments{
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  \item{pattern}{a non-empty character string or a character string
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  \item{pattern}{a non-empty character string or a character string
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  another.
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  another.
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  As from \R 2.10.0 this uses \code{tre} by Ville Laurikari
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  As from \R 2.10.0 this uses \code{tre} by Ville Laurikari
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  (\url{http://http://laurikari.net/tre/}), which supports MBCS
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  (\url{http://http://laurikari.net/tre/}), which supports MBCS
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  character matching much better than the previous version.
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  character matching much better than the previous version.
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  The main effect of \code{useBytes} is to avoid errors/warnings about
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  The main effect of \code{useBytes} is to avoid errors/warnings about
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  invalid inputs and spurious matches in multibyte locales.
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  invalid inputs and spurious matches in multibyte locales.
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  It inhibits the conversion of inputs with marked encodings, and is
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  It inhibits the conversion of inputs with marked encodings, and is
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  forced if any input is found which is marked as \code{"bytes"}.
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  forced if any input is found which is marked as \code{"bytes"}.
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}
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}