python matlibplot绘制多条曲线图

# -*- coding: UTF-8 -*-
import numpy as np
import matplotlib as mpl
import matplotlib.pyplot as plt
 
#这里导入你自己的数据
#......
#......
#x_axix，train_pn_dis这些都是长度相同的list()
 
#开始画图
sub_axix = filter(lambda x:x%200 == 0, x_axix)
plt.title('Result Analysis')
plt.plot(x_axix, train_acys, color='green', label='training accuracy')
plt.plot(sub_axix, test_acys, color='red', label='testing accuracy')
plt.plot(x_axix, train_pn_dis, color='skyblue', label='PN distance')
plt.plot(x_axix, thresholds, color='blue', label='threshold')
plt.legend() # 显示图例
 
plt.xlabel('iteration times')
plt.ylabel('rate')
plt.show()
#python 一个折线图绘制多个曲线