matplotlib绘制简单密度图

import matplotlib.pyplot as plt import pandas as pd import numpy as np import matplotlib.mlab as mlab # 加载数据 data = pd.read_csv("birth-rate.csv") # 删除不需要的空数据 data.dropna(subset=['2008'], inplace=True) # print(data.head(5)) # 高斯核 k = mlab.GaussianKDE(data['2008']) x = np.linspace(start=data['2008'].min(), stop=data['2008'].max(), num=100) # 绘制 plt.plot(x, k(x)) # 显示 plt.show()

结果图