擅长:python、mysql、java
<p>您可以使用<code>cross_val_predict</code>(<a href="http://scikit-learn.org/stable/modules/generated/sklearn.model_selection.cross_val_predict.html" rel="noreferrer">See the scikit-learn docs</a>)而不是<code>cross_val_score</code>。</p>
<p>而不是:</p>
<pre><code>from sklearn.model_selection import cross_val_score
scores = cross_val_score(clf, x, y, cv=10)
</code></pre>
<p>你可以:</p>
<pre><code>from sklearn.model_selection import cross_val_predict
from sklearn.metrics import confusion_matrix
y_pred = cross_val_predict(clf, x, y, cv=10)
conf_mat = confusion_matrix(y, y_pred)
</code></pre>