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createGlobalTempView(name)Creates a global temporary view with this DataFrame.The lifetime of this temporary view is tied to this Spark application. throws TempTableAlreadyExistsException, if th

作用：将每行的前len-1列数据抽成一个矩阵，将最后的一列作为另一个矩阵每行各数据间隔是tab(\t)def loadDataSet(fileName): #general function to parse tab -delimited floats numFeat = len(open(fileName).readline().split('\t')) - 1 #ge