I am struggling to pull out the feature importances from my RandomForestRegressor, I get an:
AttributeError: 'GridSearchCV' object has no attribute 'feature_importances_'.
Anyone know why there is no attribute? According to documentation there should exist this attribute?
The full code:
from sklearn.ensemble import RandomForestRegressor
from sklearn.model_selection import GridSearchCV
#Running a RandomForestRegressor GridSearchCV to tune the model.
parameter_candidates = {
'n_estimators' : [650, 700, 750, 800],
'min_samples_leaf' : [1, 2, 3],
'max_depth' : [10, 11, 12],
'min_samples_split' : [2, 3, 4, 5, 6]
}
RFR_regr = RandomForestRegressor()
CV_RFR_regr = GridSearchCV(estimator=RFR_regr, param_grid=parameter_candidates, n_jobs=5, verbose=2)
CV_RFR_regr.fit(X_train, y_train)
#Predict with testing set
y_pred = CV_RFR_regr.predict(X_test)
#Extract feature importances
importances = CV_RFR_regr.feature_importances_