Panel.groupby(function, axis='major') [source]
Group data on given axis, returning GroupBy object
| Parameters: |
function : callable Mapping function for chosen access axis : {‘major’, ‘minor’, ‘items’}, default ‘major’ |
|---|---|
| Returns: |
grouped : PanelGroupBy |
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http://pandas.pydata.org/pandas-docs/version/0.19.2/generated/pandas.Panel.groupby.html