gbcdPar function

Representing Generalized Biased Coin Design

Represents the randomization procedure Generalized Biased Coin Design.

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.

Returns

S4 object of the class gbcdPar.

Details

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

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