| hadaPar {randomizeR} | R Documentation |
Representing Hadamard Randomization
Description
Represents the randomization procedure Hadamard Randomization.
Usage
hadaPar(N, groups = LETTERS[1:2])
Arguments
N |
integer for the total sample size of the trial. |
groups |
character vector of labels for the different treatments. |
Details
Hadamard randomization has been proposed by R.A. Bailey. The key idea is to
use the columns of a special Hadamard Matrix as a randomization scheme. The
implemented algorithm uses the Hadamard Matrix with N=12 columns
proposed in the paper, see references.
Value
S4 object of the class hadaPar.
Note
getProb and getAllSeq are currently only supported for hadaPar
with total sample size N=12.
References
R.A. Bailey and P.R. Nelson (2003) Hadamard Randomization: A valid restriction of random permuted blocks. Biometrical Journal, 45, 554-60.
See Also
Other randomization procedures:
abcdPar,
bbcdPar,
bsdPar,
chenPar,
crPar,
createParam(),
ebcPar,
gbcdPar,
mpPar,
pbrPar,
rarPar,
rpbrPar,
rtbdPar,
tbdPar,
udPar