def accumulate(self, con_idx, csd_xy):
        self._acc[con_idx] += csd_xy / np.abs(csd_xy)
Converts dates like `12/31/2010` into datetime objects.
dataset/ETHPy150Open mne-tools/mne-python/mne/connectivity/spectral.py/_PLVEst.accumulate--crossover with--dataset/ETHPy150Open buildingenergy/buildingenergy-platform/seed/utils/time.py/convert_datestr