Why does as.numeric convert matrices and arrays to vectors?
as.numeric(matrix(c("1", "2", "3", "4"), 2, 2))
[1] 1 2 3 4
I could only figure out ugly ways to bypass this, like:
x <- matrix(c("1", "2", "3", "4"), 2, 2)
array(as.numeric(x), dim = dim(x), dimnames = dimnames(x))
Alberto Monteiro
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