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DataFrame.nsmallest(n, columns, keep='first')[source] -
Get the rows of a DataFrame sorted by the
nsmallest values ofcolumns.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.nsmallest(3, 'a') a b c 4 -1 e 4 0 1 a 1 2 8 d NaN
DataFrame.nsmallest()
2017-01-12 04:46:12
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