chooseCRANmirror {utils}

R Documentation

Select a CRAN Mirror

Description

Interact with the user to choose a CRAN mirror.

Usage

chooseCRANmirror(graphics = getOption("menu.graphics"))

getCRANmirrors(all = FALSE, local.only = FALSE)

Arguments

graphics	Logical. If true and tcltk and an X server are available, use a Tk widget, or if under the AQUA interface use a Mac OS X widget, otherwise use menu.
all	Logical, get all known mirrors or only the ones flagged as OK.
local.only	Logical, try to get most recent list from CRAN or use file on local disk only.

Details

A list of mirrors is stored in file ‘R_HOME/doc/CRAN_mirrors.csv’, but first an on-line list of current mirrors is consulted, and the file copy used only if the on-line list is inaccessible.

This function was originally written to support a Windows GUI menu item, but is also called by contrib.url if it finds the initial dummy value of options("repos").

Value

None for chooseCRANmirror(), this function is invoked for its side effect of updating options("repos").

getCRANmirrors() returns a data frame with mirror information.

See Also

setRepositories, contrib.url.

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