anchor.diff:     data.table_1.10.4.tar.gz \
      rematch_1.0.1.tar.gz \
      cellranger_1.1.0.tar.gz \
  -   tidyr_0.6.1.tar.gz \
  -   googlesheets_0.2.1.tar.gz \
  +   tidyr_0.6.3.tar.gz \
  +   googlesheets_0.2.2.tar.gz \
      hms_0.3.tar.gz \
  -   readr_1.1.0.tar.gz \
  +   readr_1.1.1.tar.gz \
      purrr_0.2.2.tar.gz \
      selectr_0.3-1.tar.gz \
      rvest_0.3.2.tar.gz \
  
positive.code:    data.table_1.10.4.tar.gz \
     rematch_1.0.1.tar.gz \
     cellranger_1.1.0.tar.gz \
     tidyr_0.6.1.tar.gz \
     hms_0.3.tar.gz \
     readr_1.1.0.tar.gz \
     purrr_0.2.2.tar.gz \
     googlesheets_0.2.1.tar.gz \
     selectr_0.3-1.tar.gz \
     rvest_0.3.2.tar.gz \
     pbkrtest_0.4-7.tar.gz 
  
negative.code:    http://archive.linux.duke.edu/cran/src/contrib/data.table_1.10.4.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/rematch_1.0.1.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/cellranger_1.1.0.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/tidyr_0.6.3.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/googlesheets_0.2.2.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/hms_0.3.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/readr_1.1.1.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/purrr_0.2.2.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/selectr_0.3-1.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/rvest_0.3.2.tar.gz \
  