gbcdPar {randomizeR}

Representing Generalized Biased Coin Design

Description

Represents the randomization procedure Generalized Biased Coin Design.

Usage

gbcdPar(N, rho, groups = LETTERS[1:2])

Arguments

N

integer for the total sample size of the trial.

rho

nonnegative parameter which my be adjusted according to how strongly it is desired to balance the experiment. If rho = 1, we have Wei's urn design with alpha = 0. If rho = 0, we have complete randomization.

groups

character vector of labels for the different treatments.

Details

Generalization of Wei's urn and Efron's biased coin design.

Value

S4 object of the class gbcdPar.

References

R. L. Smith (1984) Sequential treatment allocation using biased coin designs. Journal of the Royal Statistical Society B, 46, 519-543.
W. F. Rosenberger and J. M. Lachin (2002) Randomization in Clinical Trials. Wiley, 64-65

See Also

Other randomization procedures: abcdPar, bbcdPar, bsdPar, chenPar, crPar, createParam(), ebcPar, hadaPar, mpPar, pbrPar, rarPar, rpbrPar, rtbdPar, tbdPar, udPar