Displaying 1 result from an estimated 1 matches for "maxdrink".
2007 Aug 31
3
data frame row manipulation
Hello,
struggling with the very basic needs... :( any help appreciated.
#using the package doBY
#who drinks how much beer per day and therefor cannot calculate rowise
maxvals
evaluation=data.frame(date=c(1,2,3,4,5,6,7,8,9),
name=c("Michael","Steve","Bob",
"Michael","Steve","Bob","Michael","Steve","Bob"),