https://gist.github.com/anthony-cros/4b5d40014dd52d57bc7dd05c35029066
Reproduced example from https://darrenjw.wordpress.com/2015/08/21/data-frames-and-tables-in-scala/...
Reproduced example from https://darrenjw.wordpress.com/2015/08/21/data-frames-and-tables-in-scala/ - DataFramesAndTablesInScalaArticle.scala