RandomMethodPBR Reference Class

Implements the Permuted Block Randomization (PBR) method, supporting both fixed and randomized block designs for treatment allocation.

Fields

name: Character string specifying the method name.
uniqueId: Character string uniquely identifying the method instance.
blockSizeRandomizer: RandomBlockSizeRandomizer object for selecting block sizes randomly.
blockSizes: List of block size configurations, each mapping treatment arm IDs to sizes.
fixedBlockDesignEnabled: Logical indicating if a fixed block design is used.
fixedBlockIndex: Integer specifying the index of the fixed block size to use.

initialize(...): Initializes a new RandomMethodPBR instance, validates block size settings, and assigns a unique ID.
show(): Prints a string representation of the method.
toString(): Returns a string representation of the method and its configuration.
randomize(factorLevels, randomSystemState, randomAllocationValue): Performs randomization using PBR, updates system state, and returns a RandomResult.
getNextRandomBlockSize(): Retrieves the next block size configuration, either fixed or randomized.