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DataFrameGroupBy.idxmax()

DataFrameGroupBy.idxmax(axis=0, skipna=True)

Return index of first occurrence of maximum over requested axis. NA/null values are excluded.

Parameters:

axis : {0 or ?index?, 1 or ?columns?}, default 0

0 or ?index? for row-wise, 1 or ?columns? for column-wise

skipna : boolean, default True

Exclude NA/null values. If an entire row/column is NA, the result will be first index.

Returns:

idxmax : Series

See also

Series.idxmax

Notes

This method is the DataFrame version of ndarray.argmax.

Links:

http://pandas.pydata.org/pandas-docs/version/0.19.2/generated/pandas.core.groupby.DataFrameGroupBy.idxmax.html

doc_Pandas

2017-01-12 04:47:00

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