anchor.diff:     lazyeval_0.2.2.tar.gz \
      utf8_1.1.4.tar.gz \
      fansi_0.4.0.tar.gz \
  -   pillar_1.3.1.tar.gz \
  +   pillar_1.4.1.tar.gz \
      pkgconfig_2.0.2.tar.gz \
  -   tibble_2.1.1.tar.gz \
  -   ggplot2_3.1.0.tar.gz \
  +   tibble_2.1.3.tar.gz \
  +   ggplot2_3.1.1.tar.gz \
      stargazer_5.2.2.tar.gz \
      minqa_1.2.4.tar.gz \
      RcppEigen_0.3.3.5.0.tar.gz \
  
positive.code:    plogr_0.2.0.tar.gz \
     bindr_0.1.1.tar.gz \
     bindrcpp_0.2.2.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/bindr_0.1.1.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/bindrcpp_0.2.2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/plogr_0.2.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/tidyselect_0.2.5.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/dplyr_0.8.0.1.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/DBI_1.0.0.tar.gz 
  