pandas.core.groupby.GroupBy.head — pandas 0.24.2 documentation (original) (raw)

GroupBy. head(n=5)[source]¶

Returns first n rows of each group.

Essentially equivalent to .apply(lambda x: x.head(n)), except ignores as_index flag.

See also

pandas.Series., pandas.DataFrame., pandas.Panel.

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