error in NFx file reader

[acnani]

per the neuroshare file spec for NFx files (see screenshot), data points should be 4 byte floats. therefore line 167-170 in read_NFx.py should be

format_string = '<' + str(channel_count) + 'f'
read_size = min(buffer_size, num_data_points - num_points_processed)
point_set = np.array([struct.unpack(format_string, datafile.read(channel_count * 4)) for i in range(0, read_size)])