Python Pandas - 从具有特定时间序列频率的 DateTimeIndex 中提取纳秒
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,导入所需的库-
import pandas as pd
创建一个日期时间索引,周期为6,频率为ns,即纳秒-
datetimeindex = pd.date_range('2021-10-20 02:30:50', periods=6, tz='Australia/Sydney', freq='ns')显示日期时间索引-
print("DateTimeIndex...\n", datetimeindex)获取纳秒-
print("\nGetting the nanoseconds..\n",datetimeindex.nanosecond)示例
以下是代码-
import pandas as pd
#日期时间索引,周期为6,频率为ns,即纳秒
#时区是澳大利亚/悉尼
datetimeindex = pd.date_range('2021-10-20 02:30:50', periods=6, tz='Australia/Sydney', freq='ns')
#显示日期时间索引
print("DateTimeIndex...\n", datetimeindex)
#显示日期时间索引 frequency
print("DateTimeIndex frequency...\n", datetimeindex.freq)
#获得纳秒
print("\nGetting the nanoseconds..\n",datetimeindex.nanosecond)输出结果这将产生以下代码-
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')