Displaying 1 result from an estimated 1 matches for "roghly".
Did you mean:
roughly
2009 Nov 12
2
By processing on two variables at once?
Hello!
I'm trying to runs stats on two vars at a time in a big data frame. I knew
how to do this in SAS many years ago, but have half-forgotten that as well!
I need, for instance, mean(value) by x-y combination:
x y z value
1 1 1 10
1 1 2 20
1 2 1 30
with results:
x y mean(value)
1 1 15
1 2 30
Any help?
Thanks,
~Zack
--
View this message in