SemanticScuttle - klotz.me

klotz: window* + spark* + rank*

0 bookmark(s) - Sort by: Date ↓ / Title / - Bookmarks from other users for this tag

1. Spark, Scala - How to get Top 3 value from each group of two column in dataframe - Stack Overflow

   df.withColumn("rank", rank().over(Window.partitionBy("Dept_id").orderBy($"salary".desc)))
   .filter($"rank" <= 3)
   .drop("rank")

   2019-06-24 Tags: spark, scala, dataframe, top n, window, rank by klotz

Top of the page

First / Previous / Next / Last / Page 1 of 0