def METHOD_NAME(self, PGV, C=1, method=1):
    """
    Calculate repair rate
    Parameters
    ------------
    PGV : pd.Series
        Peak ground velocity (m/s)
    K : pd.Series
        Correction factor
    method : int (default = 1)
        1 = Linear
        2 = Power
    Returns
    -------
    A pandas Series with repair rate (number of repairs per m)
    """
    PGV = (100*PGV)/2.54 # in/s
    if method == 1:
        # linear model
        RR = C*0.00187*PGV
    elif method == 2:
        # Power model
        RR = C*0.00108*np.power(PGV, 1.173)
    else:
        print("invalid method")
    RR = RR*(3.28/1000) # convert 1/1000ft to 1/m
    return RR