libgnuplot-ocaml-dev 0.8.3-3build4 (amd64 binary) in ubuntu eoan

 Gnuplot is a portable command-line driven interactive data and function
 plotting utility that supports different output formats. This package
 provides an interface to Gnuplot from the Objective CAML programming
 language. All functions talk to gnuplot through a pipe, so crude animations
 are possible.