Retrieve the cluster sizes If "train", "valid", and "xval" parameters are FALSE (default), then the training cluster sizes value is returned. If more than one parameter is set to TRUE, then a named list of cluster size vectors are returned, where the names are "train", "valid" or "xval".
h2o.cluster_sizes(object, train = FALSE, valid = FALSE, xval = FALSE)
Retrieve the training cluster sizes
Retrieve the validation cluster sizes
Retrieve the cross-validation cluster sizes