anchor.diff:     httr_1.4.0.tar.gz \
      gh_1.0.1.tar.gz \
      clipr_0.6.0.tar.gz \
  -   clisymbols_1.2.0.tar.gz \   
  +   clisymbols_1.2.0.tar.gz \
  +   purrr_0.3.2.tar.gz \
      usethis_1.5.0.tar.gz \
      memoise_1.1.0.tar.gz \
      bitops_1.0-6.tar.gz \
  
positive.code:    bindr_0.1.1.tar.gz \
     bindrcpp_0.2.2.tar.gz \
     plogr_0.2.0.tar.gz \
     purrr_0.3.2.tar.gz \
     tidyselect_0.2.5.tar.gz \
     dplyr_0.8.0.1.tar.gz 
  
  
negative.code:    https://archive.linux.duke.edu/cran/src/contrib/lazyeval_0.2.2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/utf8_1.1.4.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/fansi_0.4.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/pillar_1.4.1.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/pkgconfig_2.0.2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/tibble_2.1.3.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/ggplot2_3.1.1.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/RColorBrewer_1.1-2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/dichromat_2.0-0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/colorspace_1.4-1.tar.gz \
  