python - 我无法使用文件中的 matplotlib 值绘制图表

Question

我想使用 matplotlib 绘制心电图。来自具有浮点值的文件的 y 值，并且 x 值递增(即 x 范围从 1 到 1000)。浏览了教程并找不到任何解决方案。

Answer 1

演示代码

import numpy as np
import matplotlib.pyplot as plt
import random
import pickle


#Y Axis : Generate 1000 random numbers
yAxisNumbers = np.random.uniform(1,100,1000)

#Save numbers to a file for demo purpose
with open('numpyData.txt', 'wb') as myFile:
    pickle.dump(yAxisNumbers,myFile)


#X Axis :Generate 1000 random numbers
xNumbers = [ x for x in range(1000)]

#Load file data to a list
with open('numpyData.txt', 'rb') as aFile:
    yNumbers = pickle.load(aFile)

#Plot and label Graph
plt.plot(xNumbers,yNumbers)
plt.ylabel("Random Float Numbers")
plt.xlabel("Number Count")
plt.title("ECG Graph")
plt.show()

图表