可以用transpose转置一下,比如:
```
select skew(transpose(matrix([askv1, askv2, askv3,aksv4,askv5]))) from t
```
或者用byRow函数,byRow函数内部帮忙做了transpose,示例如下:
```
byRow(skew, matrix(askv1, askv2, askv3, askv4, askv5))
```
我的表数据如下:
我现在想算一个tick的bidv和askv的skew,比如
```
update aa_copy set factor_1 = skew(double(bid_volume1,bid_volume2,bid_volume3,bid_volume4,bid_volume5))
```
但是返回的是
The function [double] expects 0~1 argument(s), but the actual number of arguments is: 5
问一下求一个tick的横截面,即frame的一行做skew,这个要怎么做啊?