maxframe.dataframe.Series.unique#

Series.unique(method='tree')#

Uniques are returned in order of appearance. This does NOT sort.

Parameters:

  • values (1d array-like)

  • method ('shuffle' or 'tree', 'tree' method provide a better performance, 'shuffle')

  • large. (is recommended if the number of unique values is very)

See also

Index.unique, Series.unique

Examples

>>> import maxframe.dataframe as md
>>> import pandas as pd
>>> md.unique(md.Series([2, 1, 3, 3])).execute()
array([2, 1, 3])

>>> md.unique(md.Series([2] + [1] * 5)).execute()
array([2, 1])

>>> md.unique(md.Series([pd.Timestamp('20160101'),
...                     pd.Timestamp('20160101')])).execute()
array(['2016-01-01T00:00:00.000000000'], dtype='datetime64[ns]')

>>> md.unique(md.Series([pd.Timestamp('20160101', tz='US/Eastern'),
...                      pd.Timestamp('20160101', tz='US/Eastern')])).execute()
array([Timestamp('2016-01-01 00:00:00-0500', tz='US/Eastern')],
      dtype=object)