databricks.koalas.Index.is_all_dates¶
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property
Index.
is_all_dates
¶ Return if all data types of the index are datetime. remember that since Koalas does not support multiple data types in an index, so it returns True if any type of data is datetime.
Examples
>>> from datetime import datetime
>>> idx = ks.Index([datetime(2019, 1, 1, 0, 0, 0), datetime(2019, 2, 3, 0, 0, 0)]) >>> idx DatetimeIndex(['2019-01-01', '2019-02-03'], dtype='datetime64[ns]', freq=None)
>>> idx.is_all_dates True
>>> idx = ks.Index([datetime(2019, 1, 1, 0, 0, 0), None]) >>> idx DatetimeIndex(['2019-01-01', 'NaT'], dtype='datetime64[ns]', freq=None)
>>> idx.is_all_dates True
>>> idx = ks.Index([0, 1, 2]) >>> idx Int64Index([0, 1, 2], dtype='int64')
>>> idx.is_all_dates False