pandas.DataFrame.nlargest¶
- DataFrame.nlargest(n, columns, keep='first')¶
Get the rows of a DataFrame sorted by the n largest values of columns.
New in version 0.17.0.
Parameters: n : int
Number of items to retrieve
columns : list or str
Column name or names to order by
keep : {‘first’, ‘last’, False}, default ‘first’
Where there are duplicate values: - first : take the first occurrence. - last : take the last occurrence.
Returns: DataFrame
Examples
>>> df = DataFrame({'a': [1, 10, 8, 11, -1], ... 'b': list('abdce'), ... 'c': [1.0, 2.0, np.nan, 3.0, 4.0]}) >>> df.nlargest(3, 'a') a b c 3 11 c 3 1 10 b 2 2 8 d NaN