Traceback (most recent call last): File "D:\Program Files\JetBrains\PyCharm 2023.1\PycharmProject\test\test2.py", line 15, in <module> sig_base = pywt.idwt([sig_base, None], 'db4') TypeError: idwt() missing 1 required positional argument: 'wavelet'
时间: 2023-11-27 20:03:59 浏览: 52
抱歉,我的代码中有误。`pywt.idwt()`函数需要传入两个参数,分别是小波变换后的系数和小波函数。以下是修改过的代码:
```python
import pywt
import wfdb
import matplotlib.pyplot as plt
# 读取数据
record = wfdb.rdrecord('D:/下载/ptb-xl-a-large-publicly-available-electrocardiography-dataset-1.0.3/records100/00000/00001_lr')
sig = record.p_signal[:,0]
# 去除基线漂移
sig_base = pywt.dwt(sig, 'db4')[0]
sig_base = pywt.dwt(sig_base, 'db4')[0]
sig_base = pywt.dwt(sig_base, 'db4')[0]
sig_base = pywt.dwt(sig_base, 'db4')[0]
sig_base = pywt.dwt(sig_base, 'db4')[0]
sig_base = pywt.dwt(sig_base, 'db4')[0]
sig_base = pywt.dwt(sig_base, 'db4')[0]
sig_base = pywt.idwt(sig_base, None, 'db4')
# 进行滤波
sig_filt = pywt.dwt(sig_base, 'db4')
sig_filt[1][:] = 0
sig_filt = pywt.idwt(sig_filt, None, 'db4')
# 画图
plt.figure(figsize=(10,6))
plt.subplot(2,1,1)
plt.plot(sig)
plt.title('Original Signal')
plt.subplot(2,1,2)
plt.plot(sig_filt)
plt.title('Filtered Signal')
plt.tight_layout()
plt.show()
```
修改后的代码中,在`pywt.idwt()`中传入两个参数,分别为小波变换后的系数和小波函数。运行代码后,应该可以正常输出去除基线漂移并滤波后的两个图像。