elphyio.py 文件源码

def load_encoded_events(self, episode, evt_channel, identifier):
        """
        Return times stored as a 4-bytes integer
        in the specified event channel.
        """
        data_blocks = self.group_blocks_of_type(episode, identifier)
        ep_blocks = self.get_blocks_stored_in_episode(episode)
        evt_blocks = [k for k in ep_blocks if k.identifier == identifier]

        #compute events on each channel
        n_events = np.sum([k.n_events for k in evt_blocks], dtype=int, axis=0)
        pre_events = np.sum(n_events[0:evt_channel - 1], dtype=int)
        start = pre_events
        end = start + n_events[evt_channel - 1]
        expected_size = 4 * np.sum(n_events, dtype=int)
        return self.load_bytes(data_blocks, dtype='<i4', start=start, end=end, expected_size=expected_size)