Hi, I am just wondering if the grpstats function can be used with things other than the standard formulas listed on the help page. A perfect example would be if I wanted population standard deviation instead of the canned sample standard deviation. This would then extend to personally written functions as well.
Grpstats appears to be an extremely useful function for statistical analysis if it is indeed more flexible than what I'm see in the help file.
Any advice or alternative recommendations for calculating statistics by group would be greatly appreciated.
Thanks much, Brian