anchor.diff:     https://mirrors.nics.utk.edu/cran/src/contrib/lme4_1.1-15.tar.gz
   
   RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
  -   lubridate_1.7.1.tar.gz  \
  +   lubridate_1.7.3.tar.gz  \
      gtable_0.2.0.tar.gz \
      RColorBrewer_1.1-2.tar.gz \
      dichromat_2.0-0.tar.gz \
      colorspace_1.3-2.tar.gz \
      munsell_0.4.3.tar.gz \
      labeling_0.3.tar.gz \
  -   viridisLite_0.2.0.tar.gz \
  +   viridisLite_0.3.0.tar.gz \
      scales_0.5.0.tar.gz \
      proto_1.0.0.tar.gz \
      reshape2_1.4.3.tar.gz \
      assertthat_0.2.0.tar.gz \
      lazyeval_0.2.1.tar.gz \
  -   rlang_0.1.6.tar.gz \
  +   rlang_0.2.0.tar.gz \
      utf8_1.1.3.tar.gz \
      crayon_1.3.4.tar.gz \
      cli_1.0.0.tar.gz \
  -   pillar_1.1.0.tar.gz \
  -   tibble_1.4.1.tar.gz \
  +   pillar_1.2.1.tar.gz \
  +   tibble_1.4.2.tar.gz \
      ggplot2_2.2.1.tar.gz \
      stargazer_5.2.1.tar.gz \
      minqa_1.2.4.tar.gz \
  
positive.code: 
  # libraries Eric Green wanted
  RUN DEBIAN_FRONTEND=noninteractive wget \
     https://mirrors.nics.utk.edu/cran/src/contrib/lubridate_1.7.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/assertthat_0.2.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/lazyeval_0.2.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/rlang_0.1.6.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/cli_1.0.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/utf8_1.1.3.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/crayon_1.3.4.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/pillar_1.1.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/tibble_1.4.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/ggplot2_2.2.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/RColorBrewer_1.1-2.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/dichromat_2.0-0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/colorspace_1.3-2.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/munsell_0.4.3.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/labeling_0.3.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/viridisLite_0.2.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/scales_0.5.0.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/stargazer_5.2.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/reshape2_1.4.3.tar.gz \
  
negative.code: # more libraries Mine Cetinakya-Rundel asked for
  RUN DEBIAN_FRONTEND=noninteractive wget \
     https://mirrors.nics.utk.edu/cran/src/contrib/openintro_1.7.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/tibble_1.4.2.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/bindr_0.1.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/bindrcpp_0.2.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/glue_1.2.0.tar.gz \
  