elphyio.py 文件源码

def get_tag_data(self, ep, tag_ch):
        """
        Return a numpy array containing all samples of a
        signal, acquired on an Elphy tag channel, formatted
        as a list of (time, value) tuples.
        """
        #get data from the file
        y_data = self.load_encoded_tags(ep, tag_ch)
        x_data = np.arange(0, len(y_data))

        #create a recarray
        data = np.recarray(len(y_data), dtype=[('x', b_float), ('y', b_int)])

        #put in the recarray the scaled data
        factors = self.x_tag_scale_factors(ep)
        data['x'] = factors.scale(x_data)
        data['y'] = y_data
        return data