anchor.diff:     assertthat_0.1.tar.gz \
      lazyeval_0.2.0.tar.gz \
      tibble_1.2.tar.gz \
  -   ggplot2_2.2.0.tar.gz \
  +   ggplot2_2.2.1.tar.gz \
      stargazer_5.2.tar.gz \
      minqa_1.2.4.tar.gz \
      nloptr_1.0.4.tar.gz \
  -   RcppEigen_0.3.2.9.0.tar.gz \
  +   RcppEigen_0.3.2.9.1.tar.gz \
      lme4_1.1-12.tar.gz
     
   # more libraries Mine Cetinakya-Rundel asked for
  
positive.code:    http://archive.linux.duke.edu/cran/src/contrib/assertthat_0.1.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/lazyeval_0.2.0.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/tibble_1.2.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 \
     http://archive.linux.duke.edu/cran/src/contrib/colorspace_1.3-2.tar.gz \
  
negative.code:    http://archive.linux.duke.edu/cran/src/contrib/proto_1.0.0.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/minqa_1.2.4.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/nloptr_1.0.4.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/RcppEigen_0.3.2.9.1.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/lme4_1.1-12.tar.gz
  
  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
  