anchor.diff:  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
       gower_0.2.0.tar.gz \
       RcppRoll_0.3.0.tar.gz \
  -    pls_2.7-0.tar.gz \
  -    recipes_0.1.4.tar.gz \
  +    pls_2.7-1.tar.gz \
  +    recipes_0.1.5.tar.gz \
       rsample_0.0.4.tar.gz \
       hunspell_3.0.tar.gz \
       SnowballC_0.6.0.tar.gz \
  
positive.code:     https://archive.linux.duke.edu/cran/src/contrib/magic_1.5-9.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/lpSolve_5.6.13.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/RcppProgress_0.4.1.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/geometry_0.4.0.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/ddalpha_1.3.8.tar.gz 
  
  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
  
negative.code:     magic_1.5-9.tar.gz \
      lpSolve_5.6.13.tar.gz \
      RcppProgress_0.4.1.tar.gz \
      geometry_0.4.1.tar.gz \
      ddalpha_1.3.8.tar.gz 
  	
  RUN DEBIAN_FRONTEND=noninteractive wget \
      https://archive.linux.duke.edu/cran/src/contrib/gower_0.2.0.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/RcppRoll_0.3.0.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/pls_2.7-1.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/recipes_0.1.5.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/rsample_0.0.4.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/hunspell_3.0.tar.gz \
      https://archive.linux.duke.edu/cran/src/contrib/SnowballC_0.6.0.tar.gz \
  