Index.ndim return the number of dimensions of the underlying data, by definition 1

CategoricalIndex.symmetric_difference(other, result_name=None)

DatetimeIndex.nlevels

Panel4D.truediv(other, axis=0)

Series.truediv(other, level=None, fill_value=None, axis=0)

Series.cummax(axis=None, skipna=True, *args, **kwargs)

pandas.melt(frame, id_vars=None, value_vars=None, var_name=None, value_name='value', col_level=None)

DataFrameGroupBy.cumprod(axis=0, *args, **kwargs)

Panel4D.abs()

Panel4D.iat Fast integer location scalar accessor. Similarly to iloc, iat provides