如何将MapPartitionsRDD转换为数据帧？

Question

我从：

返回了MapPartitionsRDD

from pyspark.mllib.feature import Normalizer
normalizer = Normalizer()
rating = normalizer.transform(ratingRDD)
print(rating)

> MapPartitionsRDD[239] at mapPartitions at PythonMLLibAPI.scala:1522

如何将其转换为数据框？

Answer 1

尝试：

rating.map(lambda x: (x, )).toDF()