数据可视化-热点图

---

import matplotlib.pyplot as plt
import pandas as pd
data=pd.read_csv("kc_train.csv")

Z = data['销售价格'].values
X = data['经度']
Y = data['纬度']

plt.scatter(X, Y, c=Z, alpha=0.3,cmap='Greys')

plt.colorbar(); # 显示颜色条

plt.show()

颜色越深值越高.png

各种颜色的含义

image.png