[R] rowsum

[xtracto]

This summaryBy worked wonders! Thanks a lot djmuseR, I own you a beer!

> library(doBy)
> summaryBy(C ~ A + B, data = DF0, FUN = sum)
    A   B C.sum
1  52   1   124
2  52  59    38
3  52  97    75
4  57   1    64
5  57   6    26
6  57 114    12
7  89   1   192
8  89   6    20
9  89  29   137
10 89  52    13
11 89  57    10
12 89  97    23 
-- 
View this message in context: http://r.789695.n4.nabble.com/rowsum-tp3003551p3003661.html
Sent from the R help mailing list archive at Nabble.com.