在DataFrame中创建MultiIndex

import pandas as pd
import numpy as np
from pandas import DataFrame, Series

mIndex = pd.MultiIndex(levels=[['One','Two'],['a','b']],labels=[[0,0,1,1],[0,1,0,1]])
frame=DataFrame(np.random.randn(4,4),index=mIndex,columns=mIndex)

转载于:https://www.cnblogs.com/ziheIT/p/9044251.html