Does DolphinDB have a function to calculate the correlation between two columns?

Question

I want to calculate the correlation between two columns, does DolphinDB have such functions? It seems that the function "corr" only apply to the vector. I get the error as below:

corr(x, y) => getDoubleConst method not supported

Answer 1

如果 x, y 是内存表 t 的两列，则正确的脚本如下：

corr(t.x, t.y)   //here t.x and t.y are vectors.