Pandas · Function
groupby
Groups DataFrame rows by one or more keys. The returned groupby object supports calculations such as mean() and sum() for each group.
Last updated
- Since
- 3.0.0 for the observed default changing to True
Syntax
DataFrame.groupby(by=None, level=None, *, as_index=True, sort=True, group_keys=True, observed=True, dropna=True)In-depth API docs are only for subscribers: parameters, examples, common mistakes and interview practice.
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