Hi all, Beginner question:
what does the 3 mean in the (3,[0,1,2],[1.0,1.0,1.0])? https://spark.apache.org/docs/2.1.0/ml-features.html id | texts | vector ----|---------------------------------|--------------- 0 | Array("a", "b", "c") | (3,[0,1,2],[1.0,1.0,1.0]) 1 | Array("a", "b", "b", "c", "a") | (3,[0,1,2],[2.0,2.0,1.0])
