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pandas.core.groupby.GroupBy.head
GroupBy.head(self, n=5)
[source]-
Return first n rows of each group.
Essentially equivalent to
.apply(lambda x: x.head(n))
, except ignores as_index flag.Returns: - Series or DataFrame
See also
Series.groupby
DataFrame.groupby
Examples
>>> df = pd.DataFrame([[1, 2], [1, 4], [5, 6]], ... columns=['A', 'B']) >>> df.groupby('A', as_index=False).head(1) A B 0 1 2 2 5 6 >>> df.groupby('A').head(1) A B 0 1 2 2 5 6
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https://pandas.pydata.org/pandas-docs/version/0.25.0/reference/api/pandas.core.groupby.GroupBy.head.html