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rowwise
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"), vol=c(3,5,4,2,4,5,7,6,7))
evaluation #
maxval=summaryBy(vol ~ name,da...
2010 Oct 08
3
Import Multiple csv files and merge into one Master file
Dear R Group:
How to import multiple csv files and merge into one dataset.
Thanks and Regards,
Xing
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