Sum values of PairRDD

Question

I have an RDD of type:

dataset :org.apache.spark.rdd.RDD[(String, Double)] = MapPartitionRDD[26]

Which is equivalent to (Pedro, 0.083

Answer 1

like this?:

map(_._2).reduce((x, y) => x + y)

breakdown: map the tuple to just the double values, then reduce the RDD by summing.