def gapbaup(f):
    """Determine whether or not there has been a breakaway gap up.

    Parameters
    ----------
    f : pandas.DataFrame
        Dataframe with columns ``open`` and ``high``.

    Returns
    -------
    new_column : pandas.Series (bool)
        The array containing the new feature.

    References
    ----------
    *A breakaway gap represents a gap in the movement of a stock price
    supported by levels of high volume* [IP_BAGAP]_.

    """
    new_column = f['open'] > f['high'].shift(1)
    return new_column
