At the risk of appearing ignorant why is the folowing true?
o <- cbind(rep(1,3),rep(2,3),rep(3,3))
var(o)
[,1] [,2] [,3]
[1,] 0 0 0
[2,] 0 0 0
[3,] 0 0 0
and
mean(o)
[1] 2
How do I get mean to return an array similar to var? I would expect in the
above example a vector of length 3 {1,2,3}.
Thank you for your help.
Kevin
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