位置下标
import numpy
import pandas
s = pandas.Series(numpy.random.rand(5))
print(s[4])
标签
import numpy
import pandas
s = pandas.Series(numpy.random.rand(3),index = ['a','b','c'])
print(s)
print(s["b"])
sr = s[["b","a"]]
print(sr)
切片
import numpy
import pandas
s1 = pandas.Series(numpy.random.rand(5))
s2 = pandas.Series(numpy.random.rand(3),index = ["a","b","c"])
print(s1[1:4])
print(s2["a":"c"])
print(s2[:-1])
print(s2[::2])
布尔型
import numpy
import pandas
s = pandas.Series(numpy.random.rand(3)*100)
s[4] = None
print(s)
bs1 = s > 50
bs2 = s.isnull()
bs3 = s.notnull()
print(bs1)
print(bs2)
print(bs3)
print(s[s > 50])
print(s[bs3])