How to select a CRAN mirror in R

Question

I m trying to install a package through the R prompt by doing the following   install packages  RMySQL     But the output is as follows    --- Please select a CRAN mirror for use in this session ---   And nothing else  I can t find a solution to this very basic problem  What am I supposed to type in order to select a CRAN mirror    EDIT    OS  Mac-OS X 10 6 8 R Version  2 15 0

User · Answer

Add into    Rprofile  local  r  lt - getOption  repos       r  CRAN    lt -  mirror site    for example  https   mirrors ustc edu cn CRAN      options repos r      options BioC mirror  bioc mirror site    if using biocLite

User · Answer

Here is what I do  which is basically straight from the example Startup  page      Default repo local  r  lt - getOption  repos          r  CRAN    lt -  http   cran r-project org          options repos r       which is in    Rprofile   Edit  As it is now 2018  we can add that for the last few years the URL  https   cloud r-project org  has been preferable as it reflects a  https access and b  an  always-near-you  CDN

User · Answer

I use the    Rprofile solution suggested by Dirk  but I just wanted to point out that   chooseCRANmirror graphics FALSE    seems to be the sensible thing to do instead of  chooseCRANmirror 81      which may work  but which involves the magic number 81  or maybe this is subtle way to promote tourism to 81   UK  Bristol   -

User · Answer

You should either get a window with a list of repositories or a text menu with some options  But if that is not appearing  you can always specify the mirror from where to download the packages yourself by using repos parameter  By doing that  R will not ask you anymore about the repository  Example   install packages  RMySQL   repos  http   cran us r-project org     Here you have a list of mirrors for R

User · Answer

I used  chooseCRANmirror 81    it gives you a prompt to select the country   Then you can do a selection by typing the country mirror code specified there

User · Answer

If you need to set the mirror in a non-interactive way  for example doing an rbundler install in a deploy script  you can do it in this way   First manually run   chooseCRANmirror     Pick the mirror number that is best for you and remember it  Then to automate the selection   R -e  chooseCRANmirror graphics FALSE  ind 87  library rbundler  bundle      Where 87 is the number of the mirror you would like to use  This snippet also installs the rbundle for you  You can omit that if you like

User · Answer

I had  on macOS  the exact thing that you say  A  please select  prompt and then nothing more   After I opened  and updated  don t know if that was relevant  X-Quartz  and then restarted R and tried again  I got an X-window list of mirrors to choose from after a few seconds  It was faster the third time onwards

User · Answer

A drop down menu should pop up for you to select from  or you will get a bunch of numbers to choose from   whether you are using R in the terminal or an IDE such as RStudio  This is supported on Windows  Mac OS  and most Linux systems  However  it may require additional configuration or dependencies such as X-windows   To enable X-windows when using remote access use the following -XY flags   ssh -XY username server domain   There is often a default repo but this can be specified if you have any issue  such as running scripts or Rmarkdown knitr  You can use the repo opset the mirror or repository for CRAN each time you install with   install packages  package   repo   lt your nearest mirror gt      It is advisable to use the nearest mirror to your location for faster downloads  For example   install packages  RMySQL   repos  https   cran stat auckland ac nz      You can also set the repos option in your session so you only need to it once per interactive session  or script   You can check whether repos is configured with   options repos    If you get  Error in options repos    object  repos  not found  then you can set the repository option  For example   options repos    https   cran stat auckland ac nz      Then it should work to install packages like usual  For Example   install packages  RMySQL     As mentioned by others  you can configure the repository in your  Rprofile file and have this work across all of your scripts  It s up to you whether your prefer these  global  options on your system or  local  options in your session or script  These  local  options take more time to use each session but have the benefit of making others able to use your scripts if they don t have your  Rprofile

User · Answer

I m a fan of   chooseCRANmirror     Which will print the list of mirrors in the output  no worrying a popup window since you are running it from the terminal  and then you enter the number you want

User · Answer

You could also disable all graphical menus by running this or placing it in your Rprofile  options menu graphics   FALSE

User · Answer

Repository selection screen cannot be shown on your system  OS X   since OS X no longer includes X11  R tries to show you the prompt through X11  Install X11 from http   xquartz macosforge org landing   Then run the install command  The repo selection prompt will be shown

[r] How to select a CRAN mirror in R

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