[R] How to use tapply with more than one variables grouped

noobmin pseudovoid at hotmail.com
Tue Oct 23 20:47:50 CEST 2012

Thank you! This seems to work, just do not understand why you used a

I will study your solution, thanks again!

View this message in context: http://r.789695.n4.nabble.com/How-to-use-tapply-with-more-than-one-variables-grouped-tp4646948p4647199.html
Sent from the R help mailing list archive at Nabble.com.

More information about the R-help mailing list