dim(x) dim(x) <- values
x
. The second form above is used to shape a
nvector x
as an array by specifying its extents values
.ncol
, nrow
and dimnames
.x <- 1:12 ; dim(x) <- c(3,4) x # simple versions of nrow and ncol could be defined as follows nrow0 <- function(x) dim(x)[1] ncol0 <- function(x) dim(x)[2]