anchor.diff:  
   # remove install Rout files
   RUN rm \
  -   /install-papaja.Rout \
  -   /install-Shiny.Rout \
      /install-2018-packages-1.Rout \
      /install-2018-packages-2.Rout \
      /install-2018-packages-3.Rout \
  
positive.code: RUN DEBIAN_FRONTEND=noninteractive gdebi -n shiny-server-1.5.7.907-amd64.deb
  RUN rm shiny-server-1.5.7.907-amd64.deb
  RUN R CMD BATCH /r-studio/install-Shiny.R
  
  
  # install sparklyr so we can do Spark via Livy
  RUN DEBIAN_FRONTEND=noninteractive wget \
  
negative.code: RUN rm /install-rmarkdown.Rout 
  
  # Cliburn also wanted these
  # but they have mega-dependencies, so intall them the other way
  RUN R CMD BATCH /r-studio/install-dendextend.R
  RUN rm /install-dendextend.Rout 
  