def max_threshold(maxima, threshold):
    """Get the maxima with intensity above or equal to a threshold
    
    Parameters
    ----------
    maxima : pd.DataFrame
        Pandas DataFrame with the information of the maxima. Has to contain at least the column 'Intensity'.
    threshold : float
        Minimum value of the maxima to be returned.

    Returns
    -------
    pd.DataFrame
        The same Pandas DataFrame as the input ``maxima``, but containing only the maxima with an intensity equal
        or greater than ``threshold``.
    """
    return maxima[maxima['Intensity'] >= threshold]
