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法律学Python Pandas - 指示 DateTimeIndex 中的日期是否是季度的最后一天
若要检查 DateTimeIndex 中的日期是否是季度的最后一天，请使用 DateTimeIndex.is_quarter_end 属性。
首先，导入所需的库 −
import pandas as pd
使用周期 6 且频率为 D（即天）创建 DatetimeIndex。时区是澳大利亚/阿德莱德 −
datetimeindex = pd.date_range('2021-6-15 02:30:50', periods=6, tz='Australia/Adelaide', freq='15D')
显示 DateTimeIndex −
print("DateTimeIndex...\n", datetimeindex)检查 DateTimeIndex 中的日期是否是季度的最后一天 −
print("\nCheck whether the date in DateTimeIndex is the last day of the quarter...\n",
datetimeindex.is_quarter_end)示例
以下是代码 −
import pandas as pd
# DatetimeIndex with period 6 and frequency as D i.e. days
# The timezone is Australia/Adelaide
datetimeindex = pd.date_range('2021-6-15 02:30:50', periods=6, tz='Australia/Adelaide', freq='15D')
# display DateTimeIndex
print("DateTimeIndex...\n", datetimeindex)
# display DateTimeIndex frequency
print("DateTimeIndex frequency...\n", datetimeindex.freq)
# Check whether the date in DateTimeIndex is the last day of the quarter
# Result is based on the following quarters of an year:
# Quarter 1 = 1st January to 31st March
# Quarter 2 = 1st April to 30th June
# Quarter 3 = 1st July to 30th September
# Quarter 4 = 1st October to 31st December
print("\nCheck whether the date in DateTimeIndex is the last day of the quarter...\n",
datetimeindex.is_quarter_end)输出
这将生成以下代码 −
DateTimeIndex... DatetimeIndex(['2021-06-15 02:30:50+09:30', '2021-06-30 02:30:50+09:30', '2021-07-15 02:30:50+09:30', '2021-07-30 02:30:50+09:30', '2021-08-14 02:30:50+09:30', '2021-08-29 02:30:50+09:30'], dtype='datetime64[ns, Australia/Adelaide]', freq='15D') DateTimeIndex frequency... <15 * Days> Check whether the date in DateTimeIndex is the last day of the quarter... [False True False False False False]
更新日期：18-Oct-2021
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