any_neighbor_or_closest_assigned <- function(unassigned_method,
                                             unassigned,
                                             nng,
                                             assigned,
                                             radius,
                                             cl_label,
                                             distances) {
  for(i in which(unassigned)) {
    pick <- intersect(which(nng[, i]), which(assigned))
    if (length(pick) > 0) {
      cl_label[i] <- cl_label[pick[1]]
      unassigned[i] <- FALSE
    }
  }
  if (any(unassigned) && unassigned_method == "closest_assigned") {
    cl_label <- match_n_assign(cl_label, which(assigned), unassigned, radius, distances)
  }
  cl_label
}