AttributeError：“”RandomForestRegressor“”对象没有属性“”estimators“”

Question

当启动这个jupyter代码时，我收到了这个代码，

AttributeError                            Traceback (most recent call last)
<ipython-input-17-d90e432a5dde> in <module>
      2 from sklearn import tree
      3 plt.figure(figsize=(40,40))
----> 4 tree.plot_tree(regressor.estimators[0],feature_names=X_train.columns, filled=True)

AttributeError: 'RandomForestRegressor' object has no attribute 'estimators'

<Figure size 2880x2880 with 0 Axes>

这就是导致问题的线路，

   "source": [
    "#validation of the algorithm\n",
    "from sklearn import tree\n",
    "plt.figure(figsize=(40,40))\n",
    "tree.plot_tree(regressor.estimators[0],feature_names=X_train.columns, filled=True)"
   ]

有任何帮助和感谢吗？

Answer 1

正确，它不包含属性estimators。它确实包含estimators_，因此您可以尝试：

   "source": [
    "#validation of the algorithm\n",
    "from sklearn import tree\n",
    "plt.figure(figsize=(40,40))\n",
    "tree.plot_tree(regressor.estimators_[0],feature_names=X_train.columns, filled=True)"
   ]