Octave 库 - 'MeanPeakHeight' 无效参数

Question

我想在 Python 中使用 Octave 库对 Raspberry pi 3 中的 .wav 文件信号进行峰值检测 Raspbian 但是 octave.findpeaks函数。我有这个错误：findpeaks：参数 'MeanPeakHeight' 与解析器的任何有效参数不匹配 我已经安装了所有与 Octave 有关的软件包，所以这就是我不明白的原因。这是我程序的一部分：

import matplotlib.pyplot as plt  
import numpy as np  
from scipy.io import wavfile as wav  
from scipy.signal import find_peaks_cwt, butter, lfilter  
from pylab import *  
import os  
from operator import truediv  
from easygui import *  
from oct2py import octave  

"High and Low Frequency for the filter"  

    low = 100  
    high = 50  
    list_file = []  
    octave.eval("pkg load signal")  

def display_wav(wav_file):

    samplerate, beat = wav.read('/home/pi/heartbeat_project/heartbeat_songs/%s' %wav_file)
    beat_resize = np.fromfile(open('/home/pi/heartbeat_project/heartbeat_songs/%s' %wav_file),np.int16)[4*samplerate:float(beat.shape[0])-4*samplerate]
    beat_resize = beat_resize / (2.**15)
    timeArray = arange(0,float(beat_resize.shape[0]),1)
    timeArray = timeArray / samplerate   
    ylow = butter_lowpass_filter(samplerate, 5, low, beat_resize)
    y = butter_highpass_filter(samplerate, 5, high, ylow)


    peaks, indexes = octave.findpeaks(np.array(y),'DoubleSided','MeanPeakHeight',np.std(y))

Answer 1

findpeaks 是 octave-forge 信号包的一部分：source file

此函数没有 'MeanPeakHeight' 参数。我猜这是一个错字，你想要 'MinPeakHeight'

Octave 库 - 'MeanPeakHeight' 无效参数

Octave library - 'MeanPeakHeight' invalid parameter

octave

python-2.7

raspberry-pi

raspbian

oct2py