histogram_numeric ( [ALL | DISTINCT ] expr, numBins ) [ FILTER ( WHERE cond ) ] 参数 expr:函数在其上使用和计算直方图的数字、TIMESTAMP、DATE或INTERVAL表达式。 numBins:必须大于 1 的INTEGER文本,用于指定直方图计算的箱数。 cond:可选的BOOLEAN表达式,用于筛选聚合的行。
4. 注册函数 将函数直接写入FunctionRegistry类的静态代码块中,system.registerGenericUDAF("histogram_numeric", new GenericUDAFHistogramNumeric());,或者将UDAF代码单独打包成jar,采用CREATE FUNCTION语句创建函数。 End。
SELECT inline(histogram_numeric(col,10)) FROM t 其输出结果为：输出的结果是不等距的。根据官方解释...
map<double key, double value> numeric_histogram(bigint <buckets>, double [, double <weight>]) 参数说明 buckets:必填。BIGINT类型,表示返回的近似直方图列的最大个数。 colname:必填。DOUBLE类型,需要统计近似直方图的列。 weight:可选。权重值,可以指定每行数据对应的权重,值为DOUBLE类型的列。 返回值...
What changes were proposed in this pull request? The HistogramNumeric accepts NumberType but it doesn't properly handle the DecimalType in the execution. Therefore, the ClassCastException when tryi...
King of PrussiaNguyen, Chauthi. Histogram of Numeric Data Distribution from the UNIVARIATE Procedure. Proceedings of the 20th Annual Northeast SAS Users Group Conference. Baltimore, MD, 2007, paper #NP12.Nguyen, C. 2007. Histogram of Numeric Data Distribution from the UNIVARIATE Procedure. NorthEast...
Please read the description and mark the number of the corresponding image. A histogram is a vertical bar graph that presents numeric data and its frequency distribution.点击查看答案 手机看题 你可能感兴趣的试题 单项选择题 A. B. C. D. 点击查看答案 手机看题 单项选择题 变(配)...
NUMERIC_HISTOGRAM,云原生大数据计算服务 MaxCompute:统计指定列的近似直方图。此函数为MaxCompute 2.0扩展函数。 升级到MaxCompute 2.0后,产品扩展了部分函数。如果您用到的函数涉及新数据类型(TINYINT、SMALLINT、INT、FLOAT、VARCHAR、TIMESTAMP或BINARY),在使用扩
histogram_numeric ( [ALL | DISTINCT ] expr, numBins ) [ FILTER ( WHERE cond ) ] 引數 expr:函式取用的數值、TIMESTAMP、DATE或INTERVAL運算式,並計算其上的直方圖。 numBinsINTEGER:必須大於 1 的常值,指定直方圖計算的 bin 數目。 cond:選擇性BOOLEAN表達式,可篩選匯總的數據列。
DNA profiles and numeric histogram classifiers in nephrogenic adenoma [ J ]. Canc- er,2002,96(2) :117 -22.Wiener HG, Remkes GW, Birner P, Pycha A, Schatzl G, Susani M, Breitenecker G: DNA profiles and numeric histogram classifi- ers in nephrogenic adenoma. Cancer 2002, ...