随机森林-特征重要性

def solve():
    import pandas as pd
    import numpy as np
    from sklearn.ensemble import RandomForestClassifier
    df = pd.read_csv(____)
    X = df.drop(____)
    y = df['____']
    rf = RandomForestClassifier(____)
    rf.fit(____)
    importances = rf.feature_importances_
    indices = np.argsort(____)[::-____][:____]
    for i in indices:
        print(____)