擅长:python、mysql、java
<p>通过使用<code>named_steps</code>指令,在生成管道时始终可以使用分配给它们的名称</p>
<pre><code>scaler = sgd_randomized_pipe.best_estimator_.named_steps['scl']
classifier = sgd_randomized_pipe.best_estimator_.named_steps['clf']
</code></pre>
<p>然后访问所有属性,如<code>coef_</code>、<code>intercept_</code>等,这些属性可用于相应的拟合估计器。</p>
<p>这是管道公开为<a href="http://scikit-learn.org/stable/modules/generated/sklearn.pipeline.Pipeline.html" rel="noreferrer">specified in the documentation</a>的形式属性:</p>
<blockquote>
<p><strong>named_steps</strong> : dict </p>
<p>Read-only attribute to access any step parameter by user given name. Keys are step names and values are steps parameters.</p>
</blockquote>