anchor.diff:  # mccahill/r-studio
   #
  -# VERSION 1.2
  +# VERSION 1.3
   
   FROM  ubuntu:16.04
   MAINTAINER Mark McCahill "mark.mccahill@duke.edu"
   
   # get R from a CRAN archive 
  -RUN  echo   "deb http://cran.rstudio.com/bin/linux/ubuntu xenial/" >>   /etc/apt/sources.list
  +RUN  echo    "deb http://cran.rstudio.com/bin/linux/ubuntu xenial/" >>    /etc/apt/sources.list
   RUN DEBIAN_FRONTEND=noninteractive apt-key adv --keyserver keyserver.ubuntu.com --recv-keys  E084DAB9
   
   RUN apt-get  update ; \
  
positive.code:    ggformula_0.6.1.tar.gz \
     mosaic_1.1.1.tar.gz 
  
  # Cliburn Chan requested these:
  RUN DEBIAN_FRONTEND=noninteractive wget \
     https://mirrors.nics.utk.edu/cran/src/contrib/RColorBrewer_1.1-2.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/maps_3.2.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/zoo_1.8-1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/gcookbook_1.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/corrplot_0.84.tar.gz 
  
  
  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
  
negative.code:    maps_3.2.0.tar.gz \
     zoo_1.8-1.tar.gz \
     gcookbook_1.0.tar.gz \
     corrplot_0.84.tar.gz \
     sparklyr_0.7.0.tar.gz
     
  
  # install rmarkdown
  ADD ./conf /r-studio
  