emsconnect.py 文件源码

def print_timing_analysis(self):
        border = 20
        if len(self.timing_analysis) < 2 * border:
            return False
        analyis_lenght = len(self.timing_analysis) - border
        print('Total of {} pulse pairs has been sent'
              .format(analyis_lenght))
        stamps = self.timing_analysis[border:analyis_lenght]
        deltas = []
        for i in range(len(stamps) - 1, 2, -1):
            deltas.append(stamps[i] - stamps[i - 1])
        # print('Filter out pen ups')
        deltas = [d for d in deltas if d < 0.1]
        print ('For {} pulses:'.format(analyis_lenght))
        freq = 1 / np.average(deltas)
        print ('Pulse frequency was: {0:.2f} Hz'
               .format(freq))
        print ('StdDev of sleep times: {0:.6f} seconds'
               .format(np.std(deltas)))
        self.timing_analysis = []