randomizeR: tbdPar – R documentation

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Documentation

randomizeR

tbdPar

Representing Truncated Binomal Design

Description

Represents the Truncated Binomial Design.

Usage

tbdPar(bc = N, groups = LETTERS[1:2])

Arguments

`bc`	vector which contains the lengths `k_1,...,k_l` of each block. This means that the vector `bc` will have one entry for each block.
`groups`	character vector of labels for the different treatments.

Details

A fair coin is tossed until half of the patients have been assigned to one of the treatment arms. Afterwards, the randomization list is filled with the other treatment.

Value

S4 object of the class tbdPar.

References

W. F. Rosenberger and J. M. Lachin (2002) Randomization in Clinical Trials. Wiley.