find.good.L0: Finds an initial room-assignment vector
In gwb/RGroupFormation: Randomization tests for group-formation experiments

Here, a ‘good’ room-assignment vector is one whose corresponding exposure vector is approximately balanced. The function generates 'n.draws' potential room assignment vectors and selects the one that is most balanced.

1	find.good.L0(N, M, A, n.draws = 10)

`N`	An integer. The number of units in the population.
`M`	An integer. The number of units per room. 'M' must be a divisor of 'N'.
`A`	A numeric vector. The vector of attributes (must be of length 'N').
`n.draws`	An integer. The number of potential room assignment vector to draw, and from which to choose the best one.