anchor.diff:     reshape2_1.4.2.tar.gz \
      assertthat_0.2.0.tar.gz \
      lazyeval_0.2.0.tar.gz \
  -   tibble_1.3.0.tar.gz \
  +   tibble_1.3.3.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_0.3.2.9.1.tar.gz \
  -   lme4_1.1-12.tar.gz
  +   RcppEigen_0.3.3.3.0tar.gz \
  +   lme4_1.1-13.tar.gz
     
   # more libraries Mine Cetinakya-Rundel asked for
   RUN DEBIAN_FRONTEND=noninteractive wget \
      http://archive.linux.duke.edu/cran/src/contrib/openintro_1.4.tar.gz \
  -   http://archive.linux.duke.edu/cran/src/contrib/tibble_1.3.0.tar.gz \
  +   http://archive.linux.duke.edu/cran/src/contrib/tibble_1.3.3.tar.gz \
      http://archive.linux.duke.edu/cran/src/contrib/dplyr_0.5.0.tar.gz \
      http://archive.linux.duke.edu/cran/src/contrib/assertthat_0.2.0.tar.gz \
      http://archive.linux.duke.edu/cran/src/contrib/R6_2.2.1.tar.gz \
  
positive.code:    reshape2_1.4.2.tar.gz \
     assertthat_0.2.0.tar.gz \
     lazyeval_0.2.0.tar.gz \
     tibble_1.3.0.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_0.3.2.9.1.tar.gz \
     lme4_1.1-12.tar.gz
  
  RUN rm \
     lubridate_1.6.0.tar.gz  \
  
negative.code:    http://archive.linux.duke.edu/cran/src/contrib/lubridate_1.6.0.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/assertthat_0.2.0.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_1.3.3.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/ggplot2_2.2.1.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 \
  