anchor.diff:  	
   # new packages for fall 2018
   RUN DEBIAN_FRONTEND=noninteractive wget \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/tidyverse_1.2.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/promises_1.0.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/future_1.9.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/doMC_1.3.5.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/foreach_1.4.4.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/doParallel_1.0.11.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/furrr_0.1.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/drat_0.1.4.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/tidygraph_1.1.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/here_0.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/rticles_0.5.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/styler_1.0.2.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/lintr_1.0.2.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/testthat_2.0.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/pkgbuild_1.0.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/pkgload_1.0.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/rcmdcheck_1.2.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/sessioninfo_1.0.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/usethis_1.4.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/fs_1.2.6.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/reprex_0.2.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/gh_1.0.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/microbenchmark_1.4-4.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/modelr_0.1.2.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/clipr_0.4.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/callr_3.0.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/processx_3.2.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/ps_1.1.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/globals_0.12.2.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/listenv_0.7.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/iterators_1.0.10.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/enc_0.2.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/rematch2_2.0.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/rex_1.1.2.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/stringdist_0.9.5.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/praise_1.0.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/desc_1.2.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/clisymbols_1.2.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/ini_0.3.1.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/profmem_0.5.0.tar.gz \
  -    https://mirrors.nics.utk.edu/cran/src/contrib/bench_1.0.1.tar.gz 
  +    https://archive.linux.duke.edu/cran/src/contrib/tidyverse_1.2.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/promises_1.0.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/future_1.9.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/doMC_1.3.5.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/foreach_1.4.4.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/doParallel_1.0.11.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/furrr_0.1.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/drat_0.1.4.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/tidygraph_1.1.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/here_0.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/rticles_0.5.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/styler_1.0.2.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/lintr_1.0.2.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/testthat_2.0.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/pkgbuild_1.0.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/pkgload_1.0.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/rcmdcheck_1.2.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/sessioninfo_1.0.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/usethis_1.4.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/fs_1.2.6.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/reprex_0.2.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/gh_1.0.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/microbenchmark_1.4-4.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/modelr_0.1.2.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/clipr_0.4.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/callr_3.0.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/processx_3.2.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/ps_1.1.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/globals_0.12.2.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/listenv_0.7.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/iterators_1.0.10.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/enc_0.2.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/rematch2_2.0.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/rex_1.1.2.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/stringdist_0.9.5.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/praise_1.0.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/desc_1.2.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/clisymbols_1.2.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/ini_0.3.1.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/profmem_0.5.0.tar.gz \
  +    https://archive.linux.duke.edu/cran/src/contrib/bench_1.0.1.tar.gz 
   
   RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
       clipr_0.4.1.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:    pbkrtest_0.4-7.tar.gz 
  
  RUN DEBIAN_FRONTEND=noninteractive wget \
     https://archive.linux.duke.edu/cran/src/contrib/SparseM_1.77.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/MatrixModels_0.4-1.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/quantreg_5.36.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/sp_1.3-1.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/maptools_0.9-3.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/haven_1.1.2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/forcats_0.3.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/readxl_1.1.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/zip_1.0.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/openxlsx_4.1.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/rio_0.5.10.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/abind_1.4-5.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/carData_3.0-1.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/car_3.0-2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/mosaicData_0.17.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/latticeExtra_0.6-28.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/gridExtra_2.3.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/ggdendro_0.1-20.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/mnormt_1.5-5.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/psych_1.8.4.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/backports_1.1.2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/broom_0.5.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/reshape_0.8.7.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/prettyunits_1.0.2.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/progress_1.2.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/GGally_1.4.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/ggstance_0.3.1.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/ggformula_0.9.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/mosaicCore_0.6.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/ggrepel_0.8.0.tar.gz \
     https://archive.linux.duke.edu/cran/src/contrib/mosaic_1.4.0.tar.gz 
  
  RUN DEBIAN_FRONTEND=noninteractive R CMD INSTALL \
     SparseM_1.77.tar.gz \
  