Is there a a way to input a list of columns as by group variables into column mean/std dev/median?
Hi All,I'm trying to generate a new column to be a mean column of :A by groups specified by :B, :C, :D.Is there a way to do this where :B, :C, is a list? I'd like this so I can populate it using Col Dialog.If not, is there a way to break the list into arguments? The first line below gives me the desired means while the second line gives me the overall mean of :A.mean= New Column("Mean", Formula(C...