ncol(x) nrow(x)
NAs) are allowed.
ncol returns the number of columns in
x.
nrow returns the number of rows in
x.
These functions are generic in the sense that they are based on the
dim
function which is generic.
ncol(freeny.x) # create a matrix of 0's the same size as freeny.x x <- matrix(numeric(length(freeny.x)), nrow = nrow(freeny.x))