pandas.Panel数据

from pandas import Panel, DataFrame
import numpy as np

dd = {}

for i in range(1, 3):
    name = 'X' + str(i)
    dd[name] = DataFrame(np.random.randn(3,3))

print(DataFrame(np.random.randn(3,3)))
print(Panel(dd))

雅虎行情数据格式 <class 'pandas.core.panel.Panel'>