Python Pandas - 从具有特定时间序列频率的 DateTimeIndex 中提取纳秒
若要从具有特定时间序列频率的 DateTimeIndex 中提取纳秒,请使用 DateTimeIndex.nanosecond 属性。
首先,导入必需的库 −
import pandas as pd
创建一个周期为 6、频率为 ns(即纳秒)的 DatetimeIndex −
datetimeindex = pd.date_range('2021-10-20 02:30:50', periods=6, tz='Australia/Sydney', freq='ns')
显示 DateTimeIndex −
print("DateTimeIndex...\n", datetimeindex)获取纳秒 −
print("\nGetting the nanoseconds..\n",datetimeindex.nanosecond)
案例
以下为代码 −
import pandas as pd
# DatetimeIndex with period 6 and frequency as ns i.e. nanoseconds
# The timezone is Australia/Sydney
datetimeindex = pd.date_range('2021-10-20 02:30:50', periods=6, tz='Australia/Sydney', freq='ns')
# display DateTimeIndex
print("DateTimeIndex...\n", datetimeindex)
# display DateTimeIndex frequency
print("DateTimeIndex frequency...\n", datetimeindex.freq)
# get the nanoseconds
print("\nGetting the nanoseconds..\n",datetimeindex.nanosecond)输出
这将产生以下代码 −
DateTimeIndex... DatetimeIndex([ '2021-10-20 02:30:50+11:00', '2021-10-20 02:30:50.000000001+11:00', '2021-10-20 02:30:50.000000002+11:00', '2021-10-20 02:30:50.000000003+11:00', '2021-10-20 02:30:50.000000004+11:00', '2021-10-20 02:30:50.000000005+11:00'], dtype='datetime64[ns, Australia/Sydney]', freq='N') DateTimeIndex frequency... <Nano> Getting the nanoseconds.. Int64Index([0, 1, 2, 3, 4, 5], dtype='int64')
广告
数据结构
网络
RDBMS
操作系统
Java
iOS
HTML
CSS
安卓
Python
C 编程
C++
C#
MongoDB
MySQL
Javascript
PHP