def inside_cluster(value)
      limits = get_limits
      left = limits[0]
      right = limits[1]

      :ok if left <= value && right >= value
      :shorter if left >= value
      :longer if right <= value
    end
def inside_cluster(value)
      limits = get_limits
      left = limits[0]
      right = limits[1]

      :ok if left <= value && right >= value
      :shorter if left >= value
      :longer if right <= value
    end
Returns whether the value is inside the cluster
 Params:
 +value+: value to compare
 Output:
 :ok or :shorter or :longer