eland.DataFrame.columns

property DataFrame.columns: Index

DataFrame 的列标签。

返回

pandas.Index

Elasticsearch 字段名称作为 pandas.Index

另请参阅

pandas.DataFrame.columns

示例

>>> df = ed.DataFrame('http://localhost:9200', 'flights')
>>> assert isinstance(df.columns, pd.Index)
>>> df.columns
Index(['AvgTicketPrice', 'Cancelled', 'Carrier', 'Cities', 'Dest', 'DestAirportID', 'DestCityName',
       'DestCountry', 'DestLocation', 'DestRegion', 'DestWeather', 'DistanceKilometers',
       'DistanceMiles', 'FlightDelay', 'FlightDelayMin', 'FlightDelayType', 'FlightNum',
       'FlightTimeHour', 'FlightTimeMin', 'Origin', 'OriginAirportID', 'OriginCityName',
       'OriginCountry', 'OriginLocation', 'OriginRegion', 'OriginWeather', 'dayOfWeek',
       'timestamp'],
      dtype='object')