Hi,
a friend of mine came across this
R> x <- 1:5
R> cbind(x,x)
x x
[1,] 1 1
[2,] 2 2
[3,] 3 3
[4,] 4 4
[5,] 5 5
R> rbind(x,x)
[,1] [,2] [,3] [,4] [,5]
x 1 2 3 4 5
x 1 2 3 4 5
x is a vector and therefore has no dim-attribute. Obviously cbind treats x
as a col-vector but rbind treats x as a row-vector, that is: two
functions have a different view on x. I'm sure there is a
good reason for this but I could not find it ...
Torsten
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