擅长:python、mysql、java
<p>您可以尝试以下方法:</p>
<pre><code>from statsmodels.tools.eval_measures import rmse
X = dfME[["Race", "Age", "Weight", "C(Pets)"]]
rmse_result = rmse(dfME["Life Expectancy"], model.predict(X))
</code></pre>
<p>要获得预期寿命的标准偏差,您只需使用:</p>
<pre><code>stdev = dfME["Life Expectancy"].std()
</code></pre>