chooseCRANmirror | R Documentation |
Interact with the user to choose a CRAN mirror.
chooseCRANmirror(graphics = getOption("menu.graphics"), ind = NULL, local.only = FALSE) getCRANmirrors(all = FALSE, local.only = FALSE)
graphics |
Logical. If true, use a graphical list: on Windows or
the macOS GUI use a list box, and on a Unix-alike use a Tk widget if
package tcltk and an X server are available. Otherwise use a
text |
ind |
Optional numeric value giving which entry to select. |
all |
Logical, get all known mirrors or only the ones flagged as OK. |
local.only |
Logical, try to get most recent list from the CRAN master or use file on local disk only. |
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 is called by a Windows GUI menu item and by
contrib.url
if it finds the initial dummy value of
options("repos")
.
HTTPS mirrors with mirroring over ssh
will be offered in
preference to other mirrors (which are listed in a sub-menu).
ind
chooses a row in the list of current mirrors, by number. It
is best used with local.only = TRUE
and row numbers in
‘R_HOME/doc/CRAN_mirrors.csv’.
None for chooseCRANmirror()
, this function is invoked for its
side effect of updating options("repos")
.
getCRANmirrors()
returns a data frame with mirror information.
setRepositories
, chooseBioCmirror
,
contrib.url
.
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