latin_sq: Latin square
In AkselA/R-ymse: Ymse (Various)

Description Usage Arguments Details Value See Also Examples

Generate latin squares, either randomly or ordered

1	latin_sq(n, random = TRUE, reduce = TRUE)

`n`	integer; number of unique values (aka. symbols)
`random`	logical; should the square be generated randomly?
`reduce`	logical; should the square be in reduced form?

Computation time increses rapidly with n. On my computer generating a random square with n=12 takes about ten minutes, marking the upper limit of practicability, or even stretching it a little. A latin square in reduced form will have elements in the first row and the first column in a sorted order. By setting reduced=TRUE the first row and the first column will always be 1:n.

A square integer matrix of size n^2

indexvalue

set.seed(1)
ls <- latin_sq(9, reduce=TRUE)
image(ls, col=randcolours(ncol(ls)))

# The more "classic" representation with latin capital letters
ls[] <- LETTERS[ls]
ls