電影數據:pyspark 協同過濾矩陣分解ALS

須要注意代碼裏long(p[3])改爲float ratingsRDD = parts.map(lambda p: Row(userId=int(p[0]), movieId=int(p[1]), rating=float(p[2]), timestamp=float(p[3])))代碼：html from pyspark import SparkContext, SparkConf from p

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