--- a/testing2/danube_test6.scala	Sun Nov 01 01:21:31 2020 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,35 +0,0 @@
-
-import CW7b._
-
-// first test 
-
-
-def urban_groupById(ratings: List[(String, String)]) = 
-  ratings.groupBy(_._1).view.mapValues(_.map(_._2)).toMap 
-
-def urban_get_csv_file(name: String) : List[String] = {
-  import io.Source
-  import scala.util._
-  val csv = Source.fromFile(name)
-  csv.mkString.split("\n").toList.drop(1)
-}
-
-def urban_process_ratings(lines: List[String]) : List[(String, String)] = {
-  for (cols <- lines.map(_.split(",").toList); 
-       if (cols(2).toFloat >= 4)) yield (cols(0), cols(1))  
-}
-
-def urban_process_movies(lines: List[String]) : List[(String, String)] = {
-  for (cols <- lines.map(_.split(",").toList)) yield (cols(0), cols(1))  
-}
-
-
-val urban_good_ratings = process_ratings(urban_get_csv_file("ratings.csv"))
-val urban_movie_names = process_movies(urban_get_csv_file("movies.csv")).toMap
-
-val urban_ratings_map = urban_groupById(urban_good_ratings)
-
-assert((for (n <- List("1", "2", "3", "4", "5")) yield {
-  recommendations(urban_ratings_map, urban_movie_names, n).length
-}) == List(2, 2, 2, 0, 2))
-