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单项选择题
A.系统将获取到的数据流封装成一个RDD的时间间隔
B.系统对数据流进行统计分析的时间间隔
C.系统对数据流进行统计分析的频率
D.系统作业处理的周期
单项选择题
A.count
B.reduceByKeyAndWidow
C.countByValue
D.reduceByKey
单项选择题
A.val dm:Matrix=Matrices.dense(3,2,Array(0.0,3.0,0.0,2.0,0.0,6.0))
B.val dm:Matrix=Matrices.sparse(3,2,Array(0.0,2.0,3.0,0.0,0.0,6.0))
C.val sm:Matrix=Matrices.sparse(3,2,Array(0,1,2),Array(1,0,1),Array(2,3,6))
D.val sm:Matrix=Matrices.dense(3,2,Array(0,1,2),Array(1,0,1),Array(2,3,6))
单项选择题
A.val pos=LabeledPoint(1.0,Vectors.dense(1.0,0.0,3.0))
B.val pos=LabeledPoint(1.0,(1.0,0.0,3.0))
C.val pos=LabeledPoint(Vectors.dense(1.0,0.0,3.0),1.0)
D.val pos=LabeledPoint((1.0,0.0,3.0),1.0)
单项选择题
A.Array(1,2,3,4,5,6,7,8,9,10)
B.Array(1,3,5,7,9)
C.Array(2,4,6,8,10)
D.Array(1,10)