bigframes.geopandas.GeoSeries.nlargest#

GeoSeries.nlargest(n: int = 5, keep: str = 'first') Series#

Return the largest n elements.

Examples:

>>> import bigframes.pandas as bpd
>>> countries_population = {"Italy": 59000000, "France": 65000000,
...                          "Malta": 434000, "Maldives": 434000,
...                          "Brunei": 434000, "Iceland": 337000,
...                          "Nauru": 11300, "Tuvalu": 11300,
...                          "Anguilla": 11300, "Montserrat": 5200}
>>> s = bpd.Series(countries_population)
>>> s
Italy         59000000
France        65000000
Malta           434000
Maldives        434000
Brunei          434000
Iceland         337000
Nauru            11300
Tuvalu           11300
Anguilla         11300
Montserrat        5200
dtype: Int64

The n largest elements where n=5 by default.

>>> s.nlargest()
France      65000000
Italy       59000000
Malta         434000
Maldives      434000
Brunei        434000
dtype: Int64
The n largest elements where n=3. Default keep value is first so Malta

will be kept.

>>> s.nlargest(3)
France    65000000
Italy     59000000
Malta       434000
dtype: Int64

The n largest elements where n=3 and keeping the last duplicates. Brunei will be kept since it is the last with value 434000 based on the index order.

>>> s.nlargest(3, keep='last')
France    65000000
Italy     59000000
Brunei      434000
dtype: Int64

The n largest elements where n`=3` with all duplicates kept. Note that the returned Series has five elements due to the three duplicates.

>>> s.nlargest(3, keep='all')
France      65000000
Italy       59000000
Malta         434000
Maldives      434000
Brunei        434000
dtype: Int64
Parameters:
  • n (int, default 5) – Return this many descending sorted values.

  • keep ({'first', 'last', 'all'}, default 'first') – When there are duplicate values that cannot all fit in a Series of n elements: first : return the first n occurrences in order of appearance. last : return the last n occurrences in reverse order of appearance. all : keep all occurrences. This can result in a Series of size larger than n.

Returns:

The n largest values in the Series, sorted in decreasing order.

Return type:

bigframes.pandas.Series