anchor.diff:  RUN rm \
      RColorBrewer_1.1-2.tar.gz \
      maps_3.3.0.tar.gz \
  -   zoo_1.8-4.tar.gz \
  +   zoo_1.8-5.tar.gz \
      gcookbook_2.0.tar.gz \
      corrplot_0.84.tar.gz 
      
  
positive.code: RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
     RColorBrewer_1.1-2.tar.gz \
     maps_3.3.0.tar.gz \
     zoo_1.8-4.tar.gz \
     gcookbook_2.0.tar.gz \
     corrplot_0.84.tar.gz 
  
  
negative.code: RUN DEBIAN_FRONTEND=noninteractive wget \
     https://archive.linux.duke.edu/cran/src/contrib/RColorBrewer_1.1-2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/maps_3.3.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/zoo_1.8-5.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/gcookbook_2.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/corrplot_0.84.tar.gz 
  
  