def tuple_reindex(df, columns=["pressure", "temperature"]):
    """
    Create an index based on tuples from multiple columns.

    Parameters
    -----------
    df: :class:`pandas.DataFrame`
        Table DataFrame to reindex.
    columns : :class:`list`
        List of columns to incorporate into the tuple index.

    Returns
    -------
    :class:`pandas.DataFrame`
        Reindexed DataFrame.
    """
    df.index = df.loc[:, columns].astype(int).itertuples(index=False)
    return df