如何找到以下峰的y值

Question

import numpy as np
import matplotlib.pyplot as plt
from scipy.misc import electrocardiogram
from scipy.signal import find_peaks
x = electrocardiogram()[2000:4000]
peaks, _ = find_peaks(x, height=1)
plt.plot(x)
plt.plot(peaks, x[peaks], "x")
plt.plot(np.zeros_like(x), "--", color="gray")
print(peaks)
plt.show()

在下面的程序中，峰是通过scipy计算的，但是当我打印峰的值时，唯一出现的值是沿x轴...有没有办法沿x轴打印峰的值和y轴，以便在（x，y）坐标中完成信息。.

Answer 1

您可以使用

import numpy as np
import matplotlib.pyplot as plt
from scipy.misc import electrocardiogram
from scipy.signal import find_peaks
x = electrocardiogram()[2000:4000]
peaks, _ = find_peaks(x, height=1)
plt.plot(x)
plt.plot(peaks, x[peaks], "x")
plt.plot(np.zeros_like(x), "--", color="gray")
print( [(i,j) for i, j in zip(peaks, x[peaks] )] )  # To print x and corresponding peak at x
plt.show()