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Rev 61433 Rev 61890
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  If a namespace is unloaded (via \code{\link{unloadNamespace}}), a hook
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  If a namespace is unloaded (via \code{\link{unloadNamespace}}), a hook
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  function \code{.onUnload} is run (with a single argument) before final
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  function \code{.onUnload} is run (with a single argument) before final
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  unloading.
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  unloading.
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  Note that the code in \code{.onLoad} and \code{.onUnload} is run
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  Note that the code in \code{.onLoad} and \code{.onUnload} should not
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  without the package being on the search path, but (unless circumvented)
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  assume any package except the base package is on the search path.
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  lexical scope will make objects in the namespace and its imports
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  Objects in the current package will be visible (unless this is
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  visible.  (Do not use the double colon operator in \code{.onLoad} as
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  circumvented), but objects from other packages should be imported or
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  exports have not been processed at the point it is run.)
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  the double colon operator should be used.
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  \code{.onLoad}, \code{.onUnload} and \code{.onAttach} are looked for
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  \code{.onLoad}, \code{.onUnload} and \code{.onAttach} are looked for
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  as internal objects in the namespace and should not be exported
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  as internal objects in the namespace and should not be exported
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  (whereas \code{.Last.lib} should be).
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  (whereas \code{.Last.lib} should be).
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  Anything needed for the functioning of the namespace should be
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  Anything needed for the functioning of the namespace should be