pandas中Timestamp类用法详解

时间:2022-04-15 13:07:36

由于网上关于Timestamp类的资料比较少,而且官网上面介绍的很模糊,本文只是对如何创建Timestamp类对象进行简要介绍,详情请读者自行查阅文档

以下有两种方式可以创建一个Timestamp对象:

1. Timestamp()的构造方法

?
1
2
3
4
5
6
7
8
9
10
11
12
import pandas as pd
from datetime import datetime as dt
p1=pd.Timestamp(2017,6,19)
p2=pd.Timestamp(dt(2017,6,19,hour=9,minute=13,second=45))
p3=pd.Timestamp("2017-6-19 9:13:45")
 
print("type of p1:",type(p1))
print(p1)
print("type of p2:",type(p2))
print(p2)
print("type of p3:",type(p3))
print(p3)

输出:

?
1
2
3
4
5
6
('type of p1:', <class 'pandas.tslib.Timestamp'>)
2017-06-19 00:00:00
('type of p2:', <class 'pandas.tslib.Timestamp'>)
2017-06-19 09:13:45
('type of p3:', <class 'pandas.tslib.Timestamp'>)
2017-06-19 09:13:45

2. to_datetime()方法

?
1
2
3
4
5
6
7
8
9
10
import pandas as pd
from datetime import datetime as dt
 
p4=pd.to_datetime("2017-6-19 9:13:45")
p5=pd.to_datetime(dt(2017,6,19,hour=9,minute=13,second=45))
 
print("type of p4:",type(p4))
print(p4)
print("type of p5:",type(p5))
print(p5)

输出:

?
1
2
3
4
('type of p4:', <class 'pandas.tslib.Timestamp'>)
2017-06-19 09:13:45
('type of p5:', <class 'pandas.tslib.Timestamp'>)
2017-06-19 09:13:45

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。

原文链接:http://blog.csdn.net/csdn15698845876/article/details/73456967