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Spark Dataframe
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| import org.apache.spark.mllib.random.RandomRDDs | |
| import org.apache.spark.sql.{types => T, functions => F} | |
| import org.apache.spark.sql.Row | |
| // | |
| import spark.implicits._ | |
| val rdd = RandomRDDs.uniformRDD(spark.sparkContext, 100) | |
| var df = rdd.toDF("A") | |
| df = df.withColumn("id", F.monotonically_increasing_id()) |
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