Explanation for binary files inside source package according to
  https://lists.debian.org/debian-devel/2013/09/msg00332.html

Files: data/eight_schools.rda
Documented: man/as.shinystan.Rd
  Create and test 
Files: tests/testthat/old_sso_for_tests.rda
Documentation: Test data for comparison in unit test

Files: tests/testthat/stanfit2_for_tests.rda
Documentation: Test data for comparison in unit test

Files: inst/ShinyStan/ggplot_fns.rda
Documentation: inst/ShinyStan/global_utils.R
  give ShinyStan app quick access to ggplot functions

 -- Andreas Tille <tille@debian.org>  Mon, 14 May 2018 17:36:28 +0200
