~~~~~~~~~~~~~~~

存在

存在，虽然我不知道第三个指标是啥意思，这个是在较高版本里才出现的，但是第二个统计量N*R2的伴随概率是0.004远小于0.05，所以可以拒绝同方差的假设，因此模型存在异方差。

  ‘Scaled explained SS’, which as the name suggests is based on a normalised version of the explained sum of squares from the auxiliary regression, suggests in this case that there is no evidence of heteroscedasticity (since the p -values are considerably in excess of 0.05).
  However,in this case, both the F - and χ 2 (‘LM’) versions of the test statistic give the same conclusion that there is enough evidence for the presence of heteroscedasticity, since the p -values are  below 0.05.
  Thus the conclusion of the test is ambiguous and we would probably be unsatisfied.