[R] new R-user needs help

[Jim Lemon]

antoniababe at yahoo.se wrote:
> Dear all,
> 
> I have a dataset 
> 
> Exp name id x1 x2 x3 x4 x5 
> 1   a    1  23 24 23 22 30
> 1   b    2  25 26 27 23 24
> 1   c    3  32 19 23 25 28
> 2   a    4  28 32 24 26 27
> 2   b    5  23 24 25 26 28
> 2   c    6  23 31 30 38 23
> 3   a    7  24 25 31 27 29
> 3   b    8  28 25 26 32 28 
> 3   c    9  21 31 28 23 29
> 
> where each name a,b and c is repeated three times.
> Now I want to calculate the the averages of a,b and c
> over the three experiments for each x. For example for
> x1 I want to calculate the average of a like
> 
> [a(from exp1) + a(exp2)+ a(exp3)]/3= (23+28+24)/3
> 
> How can I do that ?

library(prettyR)
antonia.df<-read.csv("../antonia.dat")
brkdn(x1~name,antonia.df)

Jim