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}
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}
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\details{
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\details{
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  Multiline records are concatenated to a single line before processing.
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  Multiline records are concatenated to a single line before processing.
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  Fields that are of zero-width or are wholly beyond the end of the line
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  Fields that are of zero-width or are wholly beyond the end of the line
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  in \code{file} are replaced by \code{NA}.
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  in \code{file} are replaced by \code{NA}.
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  Negative-width fields are used to indicate columns to be skipped, e.g.,
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  Negative-width fields are used to indicate columns to be skipped, e.g.,
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  \code{-5} to skip 5 columns.  These fields are not seen by
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  \code{-5} to skip 5 columns.  These fields are not seen by
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  \code{read.table} and so should not be included in a \code{col.names}
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  \code{read.table} and so should not be included in a \code{col.names}
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  or \code{colClasses} argument (nor in the header line, if present).
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  or \code{colClasses} argument (nor in the header line, if present).
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  Reducing the \code{buffersize} argument may reduce memory use when
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  Reducing the \code{buffersize} argument may reduce memory use when
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  reading large files with long lines.  Increasing \code{buffersize} may
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  reading large files with long lines.  Increasing \code{buffersize} may
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  result in faster processing when enough memory is available.
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  result in faster processing when enough memory is available.
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}
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}
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\author{
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\author{