data(plantdist)
plantsfm <- fullmatch(plantdist) # A full match with unrestricted
# treatment-control balance
plantsfm1 <- fullmatch(plantdist,min.controls=2, max.controls=3)
stratumStructure(plantsfm)
stratumStructure(plantsfm1)
stratumStructure(plantsfm, max.controls=4)
Run the code above in your browser using DataLab