rnatives in pairwise comparison scenarios, it is also considered a Condorcet winner.

    Parameters
    ----------
    df : pd.DataFrame
        A data set to be aggregated.
    alternative : str, optional
        Column label to get alternatives, by default &#34;alternative&#34;.
    delimiter : str, optional
        Delimiter used between alternatives in a `ballot`, by default &#34;&gt;&#34;.
    pw_matrix : bool, optional
        A Pairwise Matrix is set in df, by default False.
    ballot : str, option