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
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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)
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输出:
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( '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
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2. to_datetime()方法
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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)
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输出:
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( '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
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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