pandas.DataFrame.idxmax — pandas 0.24.0rc1 documentation (original) (raw)
DataFrame. idxmax(axis=0, skipna=True)[source]¶
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 NA. |
|---|---|
| Returns: | idxmax : Series |
| Raises: | ValueError If the row/column is empty |
Notes
This method is the DataFrame version of ndarray.argmax.