python之pandas的简单使用02

import numpy as np
import pandas as pd


s1 = pd.Series(np.random.randint(-5,10,10))
s2 = pd.DataFrame(np.random.uniform(-5,10,(3,4)),index=list('ABC'),columns=list('abcd'))

print(s1)
print(s2)


# print(np.sum(s1))
# print(np.sum(s2,axis=0))


# print(s1.apply((lambda x:x**4)))


# 要求吧第一个series对象里面数据找最大值最小值的差值
# print(np.max(s2)-np.min(s2))
# print(s2.apply((lambda x:np.max(x)-np.min(x))))

#除去series的负数
# print(s2.apply((lambda x:(x**2)**0.5)))

#取整
# print(np.rint(s2))