keymatrix-class: Class keymatrix
In planor: Generation of Regular Factorial Designs

Description Objects from the Class Slots Extends Methods Author(s) See Also Examples

An S4 class to represent an elementary key matrix.

Objects from this class are usually components of an object of class keyring or designkey.

.Data: a matrix of integers modulo p.
p: a prime number.

Class matrix, from data part. Class array, by class matrix, distance 2. Class structure, by class matrix, distance 3. Class vector, by class matrix, distance 4, with explicit coerce.

alias: give the aliasing relationships of the key matrix. See alias methods.
show: display the object. See show methods.
summary: summarize the design properties. See summary methods.

Monod, H. and Bouvier, A.

keyring, designkey

showClass("keymatrix")
### Creation of a listofkeyrings object
K0 <- planor.designkey(factors=c("block", LETTERS[1:4]), nlevels=rep(3,5),
    model=~block + (A+B+C+D)^2, estimate=~A+B+C+D,
    nunits=3^3, base=~A+B+C, max.sol=2)
### Show a keymatrix of K0
show(K0[[1]][[1]])