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% File src/library/utils/man/update.packages.Rd
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% File src/library/utils/man/update.packages.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 1995-2017 R Core Team
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% Copyright 1995-2019 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{update.packages}
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\name{update.packages}
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\alias{update.packages}
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\alias{update.packages}
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\alias{old.packages}
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\alias{old.packages}
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install the packages.}
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install the packages.}
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\item{ask}{logical indicating whether to ask the user to select
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\item{ask}{logical indicating whether to ask the user to select
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packages before they are downloaded and installed, or the character
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packages before they are downloaded and installed, or the character
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string \code{"graphics"}, which brings up a widget to allow the user
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string \code{"graphics"}, which brings up a widget to allow the user
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to (de-)select from the list of packages which could be updated.
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to (de-)select from the list of packages which could be updated.
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(The latter value only works on systems with a GUI version of
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The latter value only works on systems with a GUI version of
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\code{\link{select.list}}, and is otherwise equivalent to
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\code{\link{select.list}}, and is otherwise equivalent to
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\code{ask = TRUE}. \code{ask} does not control questions asked before
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installing packages from source via \code{type = "both"} (see option
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\code{ask = TRUE}.)
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\code{"install.packages.compile.from.source"}).
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}
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}
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\item{available}{
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\item{available}{
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an object as returned by \code{\link{available.packages}}
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an object as returned by \code{\link{available.packages}}
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listing packages available at the repositories, or \code{NULL} which
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listing packages available at the repositories, or \code{NULL} which
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makes an internal call to \code{available.packages}.
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makes an internal call to \code{available.packages}.
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