Pyplot基础图表函数
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214142124177-1664359929.png)
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214142139152-870933267.png)
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214142149419-1932398809.png)
Pyplot饼图的绘制:
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214142250547-573465634.png)
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214142304329-1799116039.png)
Pyplot直方图的绘制:
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214142356511-45802199.png)
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214142414742-242031860.png)
Pyplot极坐标图的绘制:
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214142924626-1177585595.png)
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214142943485-1772022363.png)
Pyplot散点图的绘制:
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214143043297-689276845.png)
单元小结:
![](https://img2018.cnblogs.com/blog/1595345/201902/1595345-20190214143127021-797016071.png)
import numpy as np
import matplotlib.pyplot as plt
from scipy.io import wavfile
rate_h, hstrain= wavfile.read(r"H1_Strain.wav","rb")
rate_l, lstrain= wavfile.read(r"L1_Strain.wav","rb")
#reftime, ref_H1 = np.genfromtxt('GW150914_4_NR_waveform_template.txt').transpose()
reftime, ref_H1 = np.genfromtxt('wf_template.txt').transpose() #使用python123.io下载文件
htime_interval = 1/rate_h
ltime_interval = 1/rate_l
fig = plt.figure(figsize=(12, 6))
# 丢失信号起始点
htime_len = hstrain.shape[0]/rate_h
htime = np.arange(-htime_len/2, htime_len/2 , htime_interval)
plth = fig.add_subplot(221)
plth.plot(htime, hstrain, 'y')
plth.set_xlabel('Time (seconds)')
plth.set_ylabel('H1 Strain')
plth.set_title('H1 Strain')
ltime_len = lstrain.shape[0]/rate_l
ltime = np.arange(-ltime_len/2, ltime_len/2 , ltime_interval)
pltl = fig.add_subplot(222)
pltl.plot(ltime, lstrain, 'g')
pltl.set_xlabel('Time (seconds)')
pltl.set_ylabel('L1 Strain')
pltl.set_title('L1 Strain')
pltref = fig.add_subplot(212)
pltref.plot(reftime, ref_H1)
pltref.set_xlabel('Time (seconds)')
pltref.set_ylabel('Template Strain')
pltref.set_title('Template')
fig.tight_layout()
plt.savefig("Gravitational_Waves_Original.png")
plt.show()
plt.close(fig)