planor.design-methods: Build a Design from a Design Key Solution

In planor: Generation of Regular Factorial Designs

Description

Methods to build a factorial design from an object containing key matrices.

Usage

## S4 method for signature 'designkey'
planor.design(key, randomize=NULL, ...)

## S4 method for signature 'listofdesignkeys'
planor.design(key, randomize=NULL, selection=1, ...)

## S4 method for signature 'listofkeyrings'
planor.design(key, randomize=NULL, selection,...)

## S4 method for signature 'numeric'
planor.design(key, start=1)

Arguments

key	an object of the first class in the signature, or a vector of integers.
randomize	an optional formula to specify the block structure for design randomization.
selection	when key is a listofdesignkeys object, an integer scalar. when key is a listofkeyrings object, should be an index vector to select the key matrix for each prime.
...	additional arguments, in particular those related to randomization (see planor.randomize).
start	an integer from where to start the series of symbols.

Details

• When key is numeric, it should be a vector of integers of length s. Then, the function generates a full factorial n_1 x n_2 x ... x n_s design with columns considered as factors. It returns an integer matrix with prod(n) rows and s columns giving all combinations along the rows, in lexicographic order.

• When key is a listofdesignkeys object, build one design from a selected solution.

Value

An object of class planordesign, which contains the design built from the input. This function is restricted to give a single design. When key is numeric, see Details.

See Also

Classes where this method applies: designkey, listofdesignkeys, listofkeyrings.

Examples

### Creation of a listofdesignkeys object
K0 <- planor.designkey(factors=c("R","C","U","A","B1","B2"),
 nlevels=c(3,2,2,3,2,2), model=~R*C + (A+B1+B2)^2, estimate=~A:B1+A:B2,
 nunits=12, base=~R+C+U, max.sol=2)
### Method planor.design applied on the listofdesignkeys object
P0 <- planor.design(key=K0, select=1)
### Method planor.design applied on a designkey object
P0 <- planor.design(K0[1])


### Creation of a listofkeyrings object
K0 <- planor.designkey(factors=c(LETTERS[1:4], "block"), 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, verbose=TRUE)
### Method planor.design applied on a designkey object
P0 <- planor.design(K0[1])
P0.R <- planor.design(K0[1], randomize=~A+B+C+D) # randomize the final design

planor documentation built on March 19, 2020, 1:06 a.m.