Class keyring

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Description

An S4 class to represent a list of design-key matrices which are associated with the same prime and which represent alternative solutions to the same design specifications.

Objects from the Class

Each component of the structure returned by planor.designkey is a keyring object when the case is not recursive.

Slots

.Data

a list of keymatrix objects.

p

a prime number.

LIB

a list containing a vector of row names and a vector of column names. The names are the same for all key matrices.

pseudo.info

a dataframe containing information on the pseudofactors associated with the key matrices. See the description of the class designfactors.

Extends

Class list, from data part. Class vector, by class list, distance 2.

Methods

show

display the object. See show method.

summary

summarize the design properties. See summary method.

Note

Each key matrix in a keyring object is a possible solution to the same factors, model and estimate specifications, with respect to the same prime number. An object of class listofkeyrings is a list of keyring objects associated with the different primes involved in a given factorial design problem.

Author(s)

Monod, H. and Bouvier, A.

See Also

planor.designkey, methods pick.listofkeyrings and summary.keymatrix, the class keyring

Examples

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showClass("keyring")
### 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 keyring component of K0
show(K0[[1]])