Arne Henningsen wrote:
On Friday 21 January 2005 06:35, Gabor Grothendieck wrote:
In R, vectors are not arrays:
R> v <- 1:4 R> dim(v) NULL R> is.array(v) [1] FALSE
R> a <- array(1:4) R> dim(a) [1] 4 R> is.array(a) [1] TRUE
Is this a feature which is useful in some applications?
IMHO the difference between vectors and 1-dimensional arrays is really annoying and I had already several bugs in my code, because I mixed these up.
Is it possible in future versions of R that R does not differentiate between vectors and 1-dimensional arrays (e.g. by treating all vectors as 1-dimensional arrays)?
No, that would break huge amounts of code!
See ?"[" and learn how to use its argument "drop".
Uwe Ligges
Arne
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