Github user srowen commented on a diff in the pull request: https://github.com/apache/spark/pull/10587#discussion_r49174933 --- Diff: core/src/main/scala/org/apache/spark/rdd/RDD.scala --- @@ -1089,6 +1097,14 @@ abstract class RDD[T: ClassTag]( * and one operation for merging two U's, as in scala.TraversableOnce. Both of these functions are * allowed to modify and return their first argument instead of creating a new U to avoid memory * allocation. + * + * @param zeroValue the initial value for the accumulated result of each partition for the seqOp + * operator, and also the initial value for the combine results from different + * partitions for the conbOp operator. + * - this will typically be the neutral element. --- End diff -- There are some typos now, like conbOp instead of combOp. Also there's a dangling phrase in both starting with "-" which is supposed to join the previous sentence? while you're here you can back-tick `Nil`
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