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

Files: data/anger.rda
Documented: man/anger.Rd
  Anger data \usage{data(anger)

Files: data/derived.rda
Documented: man/derived.Rd
  Data on blood pressure body mass and age

Files: data/glucose.rda
Documented: man/glucose.Rd
  Glucose control

Files: data/marks.rda
Documented: man/marks.Rd
  Mathematics marks

Files: data/stress.rda
Documented: man/stress.Rd
  Stress data \usage{data(stress)

Files: data/surdata.rda
Documented: man/surdata.Rd
  Simulated data following a seemingly unrelated regression model. \usage{data(surdata)

 -- Andreas Tille <tille@debian.org>  Tue, 17 Sep 2019 12:53:31 +0200
