anchor.diff:      zlib1g-dev \
     && apt-get clean \
     && install2.r --error \
  -    tidyverse \
       data.table \
       dtplyr \
       GGally \
  
positive.code:     sp \
      rprojroot \
      sessioninfo \
      arm
  
  
  RUN Rscript -e 'install.packages("CASdatasets", repos = "http://cas.uqam.ca/pub/R/", type="source")'
  
negative.code: FROM rocker/verse:3.5.1
  
  RUN apt-get update \
    && apt-get install -y --no-install-recommends \
  