rowSum

语法

rowSum(args...)

row 系列函数通用参数说明和计算规则请参考: 行计算系列(row 系列)

详情

逐行进行元素求和操作,返回一个长度与输入参数行数相同的向量。

例子

$ m=matrix([4.5 2.6 1.5, 1.5 4.8 5.9, 4.9 2.0 NULL])
$ rowSum(m);
[10.9,9.4,7.4]

$ t1=table(1..5 as x, 6..10 as y)
$ t2=table(5..1 as a, 10..6 as b);

$ rowSum(t1);
[7,9,11,13,15]

$ rowSum(t1[`x], t2, 1 1 2 2 2);
[17,16,16,15,14]

$ t=table(`AAPL`MS`IBM`IBM`C as sym, 49.6 29.46 29.52 30.02 174.97 as price1, 175.23 50.76 50.32 51.29 26.23 as price2)
$ select sym,rowSum(price1,price2) as priceSum from t;

sym

priceSum

AAPL

224.83

MS

80.22

IBM

79.84

IBM

81.31

C

201.2

相关函数:sum