obspy.signal.cross_correlation.xcorr_max¶

fct

>>> fct = np.zeros(101)
>>> fct[50] = -1.0
>>> xcorr_max(fct)
(0, -1.0)
>>> fct[50], fct[60] = 0.0, 1.0
>>> xcorr_max(fct)
(10, 1.0)
>>> fct[60], fct[40] = 0.0, -1.0
>>> xcorr_max(fct)
(-10, -1.0)
>>> fct[60], fct[40] = 0.5, -1.0
>>> xcorr_max(fct, abs_max=True)
(-10, -1.0)
>>> xcorr_max(fct, abs_max=False)
(10, 0.5)
>>> xcorr_max(fct[:-1], abs_max=False)
(10.5, 0.5)

Parameters:	fct (`ndarray`) Cross-correlation function e.g. returned by correlate. abs_max (bool) Determines if the absolute maximum should be used.
Returns:	shift, value - Shift and value of maximum of cross-correlation.