RDDs and Data SamplingRDD RefresherData Sampling with SparkSpark TransformationsFunctional TransformationsGrouping, Sorting, and Distinct FunctionsSet OperationsSpark ActionsThe count ActionThe collect, take, top, and first ActionsThe reduce and fold ActionsThe foreach ActionKey Value Pair OperationsKey Value Pair RDD Dictionary FunctionsFunctional Key Value Pair RDD TransformationsGrouping, Aggregation, Sorting, and Set OperationsJoin FunctionsJoin TypesJoin TransformationsNumerical RDD Operationsmin()max()mean()sum()stdev()variance()stats()SummaryQ&AWorkshopQuizAnswers