anchor.diff:     scales_0.4.1.tar.gz \
      proto_1.0.0.tar.gz \
      reshape2_1.4.2.tar.gz \
  +   tibble_1.2.tar.gz \
  +   lazyeval_0.2.0.tar.gz \
      ggplot2_2.2.0.tar.gz \
      stargazer_5.2.tar.gz \
      minqa_1.2.4.tar.gz \
  
positive.code:    scales_0.4.1.tar.gz \
     proto_1.0.0.tar.gz \
     reshape2_1.4.2.tar.gz \
     ggplot2_2.2.0.tar.gz \
     stargazer_5.2.tar.gz \
     minqa_1.2.4.tar.gz \
  
negative.code: # libraries Eric Green wanted
  RUN DEBIAN_FRONTEND=noninteractive wget \
     http://archive.linux.duke.edu/cran/src/contrib/lubridate_1.6.0.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/tibble_1.2.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/lazyeval_0.2.0.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/ggplot2_2.2.0.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/RColorBrewer_1.1-2.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/dichromat_2.0-0.tar.gz \
  