anchor.diff:      make && \
       make install
   
  +# Install R packages
   COPY r-packages.R /tmp/
   RUN R --vanilla -f /tmp/r-packages.R
   
  
positive.code: FROM danielak/pandoc:latest
  
  # Global Variables
  # Making one change to RBRANCH toggles this from pre-release (R-devel) to base (current R)
  
negative.code: 
  # Try replacing the standard ubuntu archive with a faster mirror
  RUN sed -i.bak 's/archive.ubuntu.com/mirrors.rit.edu/' /etc/apt/sources.list
  
  # Install Pandoc
  RUN cabal update && cabal install pandoc
  RUN cabal update && cabal install pandoc-citeproc
  
  # Link Pandoc Binaries
  RUN ln -s /root/.cabal/bin/pandoc /usr/local/bin/pandoc
  RUN ln -s /root/.cabal/bin/pandoc-citeproc /usr/local/bin/pandoc-citeproc
  
  # Get the system ready to build R from source
  RUN apt-get update && apt-get build-dep --assume-yes \
  