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74866
2012 Sep 25
1
Mean calculation of groups
Dear all,
I have a data frame and I want to calculate mean of the first column which
is same name for example: CTK100 group
> dput(test)
structure(list(Name = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 3L,
3L, 3L, 3L, 3L, 3L, 3L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
2L), .Label = c("CTK100", "CTK103", "CTK121"), class = "factor"),
Score = c(236.9726,