t Products       103.11         19.66
    Beef                  55.48       1712.00

    By default, it returns the index for the maximum value in each column.

    >>> df.idxmax()
    consumption     Wheat Products
    co2_emissions             Beef
    dtype: object

    To return the index for the maximum value in each row, use ``axis="columns"``.

    >>> df.idxmax(axis="columns")
    Pork              co2_emissions
    Wheat Products     consumption
    Beef              co2_emissions
    dtype: object
Z