1. 数据两列之间的关系

import pandas as pd
import numpy as np

rs = np.random.RandomState(0)
df = pd.DataFrame(rs.rand(10, 10))
corr = df.corr()
corr.style.background_gradient(cmap='coolwarm')
# 'RdBu_r' & 'BrBG' are other good diverging colormaps

2. 限制小数点位数

corr.style.background_gradient(cmap='coolwarm').set_precision(2)

3.不显示数字

corr.style.background_gradient(cmap='coolwarm').set_properties(**{'font-size': '0pt'})

4. 以整个图的数值来排序后赋予颜色，不是以单个行或列的值来排序

corr.style.background_gradient(cmap='coolwarm', axis=None)

参考资料

• https://stackoverflow.com/questions/29432629/plot-correlation-matrix-using-pandas