anchor.diff:     RColorBrewer_1.1-2.tar.gz \
      maps_3.1.1.tar.gz \
      zoo_1.7-14.tar.gz \
  +   xtable_1.8-2.tar.gz \
  +   registry_0.3.tar.gz \
      pkgmaker_0.22.tar.gz \
  -   registry_0.3.tar.gz \
      rngtools_1.2.4.tar.gz \
      gridBase_0.4-7.tar.gz \
      foreach_1.4.3.tar.gz \
  
positive.code:    RColorBrewer_1.1-2.tar.gz \
     maps_3.1.1.tar.gz \
     zoo_1.7-14.tar.gz \
     pkgmaker_0.22.tar.gz \
     registry_0.3.tar.gz \
     rngtools_1.2.4.tar.gz \
     gridBase_0.4-7.tar.gz \
     foreach_1.4.3.tar.gz \
  
negative.code:    http://archive.linux.duke.edu/cran/src/contrib/RColorBrewer_1.1-2.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/maps_3.1.1.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/zoo_1.7-14.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/xtable_1.8-2.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/pkgmaker_0.22.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/registry_0.3.tar.gz \
     http://archive.linux.duke.edu/cran/src/contrib/rngtools_1.2.4.tar.gz \
  