================== Welcome to rPkgsInstall ==================
                     Install/update/remove R packages for AFNI
Version 0.0.2, Feb 25, 2020
Author: Gang Chen (gangchen@mail.nih.gov)
Website - https://afni.nimh.nih.gov/gangchen_homepage
SSCC/NIMH, National Institutes of Health, Bethesda MD 20892

 rPkgsInstall is a program for installing, checking, updating, or removing any
 R packages. It conveniently runs on the shell terminal instead of the R prompt.
 Check out the examples below or the option specifications for usage details.

Example 1 --- Install all the R packages that are currently required in
AFNI programs:
   rPkgsInstall -pkgs ALL
   rPkgsInstall -pkgs ALL -site 'http://cloud.r-project.org'

Example 2 --- Install user-specified R packages:
   rPkgsInstall -pkgs 'gsl'
   rPkgsInstall -pkgs 'afex,phia,paran'
   rPkgsInstall -pkgs 'snow,nlme' -site 'http://cloud.r-project.org'

Example 3 --- check/update/remove R packages:
   rPkgsInstall -pkgs ALL -check
   rPkgsInstall -pkgs ALL -update
   rPkgsInstall -pkgs ALL -remove
   rPkgsInstall -pkgs ALL -update -site 'http://cloud.r-project.org/'
   rPkgsInstall -pkgs 'lmerTest,pixmap,plotrix' -check
   rPkgsInstall -pkgs 'afex,phia,paran' -update
   rPkgsInstall -pkgs 'boot' -remove
   rPkgsInstall -pkgs 'snow,nlme,vars' -update -site 'http://cloud.r-project.org'

Options in alphabetical order:

   -check: This option verifies whether all or the user-specified R packages
         listed in option -pkgs are installed on the computer, but it does not
         install/update/remove the packages.

   -help: this help message

   -pkgs package_list: List all the packages that you would like to install,
         update or move. This option is required for installation, update,
         or removal. The absence of both options -update and -remove means
         installation. The package names should be separated with comma (,)
         without any other characters such as spaces, and should be surrounded
         within single/double quotes. For example, -pkgs "afex,phia". If
         package_list is set as ALL, all the following packages required for
         AFNI programs will be installed, updated, or removed:

         'afex', 'phia', 'snow', 'nlme', 'lmerTest', 'paran', 'brms',
         'corrplot', 'metafor'. You can use rPkgsInstall to install, update, or
         remove any R packages, and they do not have to be in the list above.

   -remove: This option indicates that all or the user-specified R packages in AFNI
         will be purged from your computer. The absence of the option (default)
         means installing or updating, but no removing.

   -show_allowed_options: list of allowed options

   -site download_website: You can specify the package repository website within
        single/double quotes. The current sites can be found at


        The default is 'http://cloud.r-project.org'
        University, Houghton, MI.

   -update: This option indicates that all or the user-specified R packages in AFNI
         will be updated. The absence of the option (default) means no updating.
         A package specified in '-pkgs package_list' that has not been installed on
         the computer will be installed under this option.
         WARNING: Updating some R packages may require that R be ugraded to the
                  most recent version.