Python Pandas - 从 DateTimeIndex 创建 DataFrame,忽略索引
要从忽略索引的 DateTimeIndex 创建一个 DataFrame,请使用 DateTimeIndex.to_frame() 方法。将参数 index 设置为 False 以忽略索引。
首先,导入所需的库 −
import pandas as pd
使用周期为 5 且频率为 S(即秒)创建一个 DatetimeIndex −
datetimeindex = pd.date_range('2021-10-18 07:20:32.261811624', periods=5, tz='Australia/Adelaide', freq='40S')
显示 DateTimeIndex −
print("DateTimeIndex...\n", datetimeindex)
使用 'False' 参数从 DateTimeIndex 创建一个 DataFrame,原始索引未设置在返回的 DataFrame 中 −
print("\nDateTimeIndex to DataFrame...\n", datetimeindex.to_frame(index=False))
示例
以下是代码 −
import pandas as pd # DatetimeIndex with period 5 and frequency as S i.e. seconds # timezone is Australia/Adelaide datetimeindex = pd.date_range('2021-10-18 07:20:32.261811624', periods=5, tz='Australia/Adelaide', freq='40S') # display DateTimeIndex print("DateTimeIndex...\n", datetimeindex) # display DateTimeIndex frequency print("\nDateTimeIndex frequency...\n", datetimeindex.freq) # Create a DataFrame from DateTimeIndex # The original index isn't set in the returned DataFrame using the 'False' parameter print("\nDateTimeIndex to DataFrame...\n", datetimeindex.to_frame(index=False))
输出
这将生成以下代码 −
DateTimeIndex... DatetimeIndex(['2021-10-18 07:20:32.261811624+10:30', '2021-10-18 07:21:12.261811624+10:30', '2021-10-18 07:21:52.261811624+10:30', '2021-10-18 07:22:32.261811624+10:30', '2021-10-18 07:23:12.261811624+10:30'], dtype='datetime64[ns, Australia/Adelaide]', freq='40S') DateTimeIndex frequency... <40 * Seconds> DateTimeIndex to DataFrame... 0 0 2021-10-18 07:20:32.261811624+10:30 1 2021-10-18 07:21:12.261811624+10:30 2 2021-10-18 07:21:52.261811624+10:30 3 2021-10-18 07:22:32.261811624+10:30 4 2021-10-18 07:23:12.261811624+10:30
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