加载MIT-BIH心律失常数据库

请问使用哪种文件格式最佳，并且如何正确加载数据库并在Python中绘制信号图？我正在使用https://physionet.org/physiobank/database/mitdb/上的.dat文件。我使用了以下代码：

import numpy as np 
import matplotlib.pyplot as plt 
data = np.genfromtxt('100.dat',delimiter=',')
print(data)

但是我遇到了以下错误：

*line 1867, in genfromtxt
    raise ValueError(errmsg)
ValueError: Some errors were detected !
Line #3 (got 2 columns instead of 1)
Line #6 (got 4 columns instead of 1)
Line #9 (got 3 columns instead of 1)
Line #11 (got 3 columns instead of 1)
Line #12 (got 2 columns instead of 1)
Line #16 (got 3 columns instead of 1)
Line #17 (got 2 columns instead of 1)
Line #18 (got 3 columns instead of 1)
Line #20 (got 2 columns instead of 1)
Line #23 (got 2 columns instead of 1)
Line #27 (got 2 columns instead of 1)
Line #36 (got 2 columns instead of 1)
Line #37 (got 2 columns instead of 1)
Line #66 (got 2 columns instead of 1)
Line #67 (got 2 columns instead of 1)
Line #100 (got 2 columns instead of 1)
Line #105 (got 2 columns instead of 1)
Line #106 (got 2 columns instead of 1)
Line #118 (got 2 columns instead of 1)
Line #120 (got 5 columns instead of 1)
Line #122 (got 3 columns instead of 1)
Line #123 (got 4 columns instead of 1)
Line #125 (got 2 columns instead of 1)
Line #126 (got 2 columns instead of 1)
Line #127 (got 3 columns instead of 1)
Line #128 (got 2 columns instead of 1)
Line #134 (got 2 columns instead of 1)
Line #135 (got 2 columns instead of 1)
Line #137 (got 2 columns instead of 1)
Line #141 (got 3 columns instead of 1)
Line #143 (got 3 columns instead of 1)
Line #146 (got 2 columns instead of 1)
Line #147 (got 2 columns instead of 1)
Line #148 (got 2 columns instead of 1)
Line #149 (got 2 columns instead of 1)
Line #152 (got 3 columns instead of 1)
Line #154 (got 2 columns instead of 1)
Line #156 (got 4 columns instead of 1)
Line #162 (got 2 columns instead of 1)
Line #163 (got 2 columns instead of 1)
Line #167 (got 3 columns instead of 1)
Line #168 (got 2 columns instead of 1)
Line #174 (got 2 columns instead of 1)
Line #175 (got 2 columns instead of 1)
Line #176 (got 3 columns instead of 1)
Line #177 (got 2 columns instead of 1)
Line #179 (got 2 columns instead of 1)
Line #186 (got 2 columns instead of 1)
Line #187 (got 3 columns instead of 1)
Line #188 (got 2 columns instead of 1)
Line #189 (got 3 columns instead of 1)
Line #191 (got 2 columns instead of 1)
Line #193 (got 2 columns instead of 1)
Line #196 (got 2 columns instead of 1)
Line #199 (got 2 columns instead of 1)
Line #202 (got 2 columns instead of 1)
Line #203 (got 2 columns instead of 1)
Line #204 (got 2 columns instead of 1)
Line #209 (got 4 columns instead of 1)
Line #210 (got 4 columns instead of 1)
Line #211 (got 2 columns instead of 1)
Line #213 (got 2 columns instead of 1)
Line #218 (got 2 columns instead of 1)
Line #222 (got 2 columns instead of 1)
Line #223 (got 3 columns instead of 1)
Line #228 (got 2 columns instead of 1)
Line #236 (got 2 columns instead of 1)
Line #240 (got 2 columns instead of 1)
Line #241 (got 2 columns instead of 1)
Line #244 (got 3 columns instead of 1)
Line #246 (got 2 columns instead of 1)
Line #255 (got 2 columns instead of 1)
Line #257 (got 2 columns instead of 1)
Line #268 (got 2 columns instead of 1)
Line #269 (got 2 columns instead of 1)
Line #271 (got 2 columns instead of 1)
Line #273 (got 4 columns instead of 1)
Line #280 (got 2 columns instead of 1)
Line #281 (got 2 columns instead of 1)
Line #291 (got 2 columns instead of 1)
Line #323 (got 2 columns instead of 1)
Line #325 (got 2 columns instead of 1)
Line #334 (got 2 columns instead of 1)
Line #340 (got 2 columns instead of 1)
Line #341 (got 2 columns instead of 1)
Line #342 (got 2 columns instead of 1)
Line #364 (got 2 columns instead of 1)
Line #372 (got 3 columns instead of 1)
Line #375 (got 2 columns instead of 1)
Line #378 (got 6 columns instead of 1)*