[SOLVED] Average/deviation by group

andreister · 2013-09-29T22:50:06+00:00

I have a data set where one of the columns is category. And I want to calculate the mean and standard deviation of some other column, but separately for each category. Ie., for input like GroupName...Value A.......................1 A.......................3 B......................1 B.......................5 I want the…