xgboost，lightgbm权值图

如果列名包含汉字，需要设置字体

import lightgbm as lgb
import xgboost as xgb
from matplotlib import pyplot as plt


####lgb，xgb训练完成后............

#设置字体
plt.rcParams['font.sans-serif']=['SimHei']
plt.rcParams['axes.unicode_minus'] = False

# 使显示图标自适应
plt.rcParams['figure.autolayout'] = True
plt.figure(figsize=(16,10))

#lgb权值图
lgb.plot_importance(model_lgb, max_num_features=30)
plt.title("Featurertances")
plt.show()

#xgb权值图
from xgboost import plot_importance
plot_importance(model_xgb)