k
magic.dim
provides a vector
containing two elements, the number of rows (k1) and columns (k2),
respectively, which can be used to set the
dimension of a single graphic device so that k1*k2 plots can be
drawn by row (or by column) on the device.magic.dim(k)
primeFactors
and bestCombination
which are
internally used to complete the task.n2mfrow
is a similar function from package