scipy.signal.find_peaks 返回空属性

我试图获得properties from scipy.signal.find_peaks https://docs.scipy.org/doc//scipy/reference/generated/scipy.signal.find_peaks.html，但它返回一个空字典{}。任何人都可以帮忙修复它吗？

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from scipy.signal import find_peaks

max_index, properties = find_peaks(line['y'],prominence=None)
max_x = [line['x'][i] for i in max_index]
max_y = [line['y'][i] for i in max_index]
peak = {'x':max_x,'y':max_y}

print(properties)

问题是你正在通过None to prominence。 None 已经是默认值，用于表示未给出参数值。

传递一个数值，如下所示：

max_index, properties = find_peaks(line['y'], prominence=0.1)
max_x = [line['x'][i] for i in max_index]
max_y = [line['y'][i] for i in max_index]
peak = {'x': max_x, 'y': max_y}

print(properties)

Output

{'prominences': array([0.27416504, 0.10761815]), 'left_bases': array([ 14, 132]), 'right_bases': array([158, 158])}