anchor.diff:     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
  +   corrplot_0.84.tar.gz 
   
   
   RUN rm \
  
positive.code: RUN DEBIAN_FRONTEND=noninteractive gdebi -n shiny-server-1.5.3.838-amd64.deb
  RUN rm shiny-server-1.5.3.838-amd64.deb
  RUN R CMD BATCH /r-studio/install-Shiny.R
  
  # some more TeX so that papaja can be installed and students can create APA templates in Rmarkdown
  RUN apt-get update 
  
negative.code:    maps_3.2.0.tar.gz \
     zoo_1.8-1.tar.gz \
     gcookbook_1.0.tar.gz \
     corrplot_0.84.tar.gz 
     
  
  # install rmarkdown
  