anchor.diff:      flexdashboard_0.5.1.1.tar.gz 
   
   RUN DEBIAN_FRONTEND=noninteractive wget \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/nycflights13_1.0.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/babynames_0.3.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/janeaustenr_0.1.5.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/NHANES_2.1.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/repurrrsive_0.1.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/infer_0.3.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/ipred_0.9-7.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/numDeriv_2016.8-1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/SQUAREM_2017.10-1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/lava_1.6.3.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/prodlim_2018.04.18.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/CVST_0.2-2.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/DRR_0.0.3.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/dimRed_0.1.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/timeDate_3043.102.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/sfsmisc_1.1-2.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/magic_1.5-8.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/geometry_0.3-6.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/ddalpha_1.3.4.tar.gz 
  +    https://archive.linux.duke.edu/cran/src/contrib/nycflights13_1.0.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/babynames_0.3.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/janeaustenr_0.1.5.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/NHANES_2.1.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/repurrrsive_0.1.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/infer_0.3.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/ipred_0.9-7.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/numDeriv_2016.8-1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/SQUAREM_2017.10-1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/lava_1.6.3.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/prodlim_2018.04.18.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/CVST_0.2-2.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/DRR_0.0.3.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/dimRed_0.1.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/timeDate_3043.102.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/sfsmisc_1.1-2.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/magic_1.5-8.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/geometry_0.3-6.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/ddalpha_1.3.4.tar.gz 
   
   RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
       nycflights13_1.0.0.tar.gz \
  
positive.code: 
  	
  RUN DEBIAN_FRONTEND=noninteractive wget \
     https://mirrors.nics.utk.edu/cran/src/contrib/rgdal_1.3-4.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/rgeos_0.3-28.tar.gz \
     https://mirrors.nics.utk.edu/cran/src/contrib/uuid_0.1-2.tar.gz
   
   
  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
  
negative.code: 
  # Cliburn Chan requested these:
  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_1.8-3.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/gcookbook_1.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/rprojroot_1.3-2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/corrplot_0.84.tar.gz 
  
  
  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
  