python - 线上的标记

Question

我有一个列表列表，其中包含用于绘制两条线的两个不同数据，以及另一个列表列表，其中包含这些各自线上的标记。但标记列表的列表可以有空集。我已经编写了代码，但它不显示任何图像。谁能告诉我为什么下面几行不起作用？

import numpy as np
import matplotlib.pyplot as plt

def Draw(Narratives, Prob_failure):        
    x=list(range(0,len(Narratives[0])))
    for i in range(len(Narratives)):
        plt.figure(figsize=(12,8))
        if not Prob_failure[i]:
            plt.plot(x,Narratives[i])
        else:
            Int_Prob_failures = [int(x) for x in Prob_failure[i] ]
            markers_on = Int_Prob_failures
            plt.plot(x,Narratives[i],'-gD', markevery=markers_on)
    plt.xlim(0,len(Narratives[0]))
    plt.ylim(0.0, 2000.0)
    plt.grid(True)
    plt.xlabel('Length of the Data Narrative', fontsize=15)
    plt.ylabel('Intervals', fontsize=15)
    plt.title('Plotting Data Narratives', weight='bold')
    plt.legend()
    plt.show()

Data = [[40.495959999999997, 68.728006916094003, 80.991919999999993, 121.48787999999999, 161.98383999999999, 200.75514611468412, 202.47979999999998, 208.8702579527606, 242.97575999999998, 426.66599412223769, 598.13431735234519, 947.40769717700846], [40.495959999999997, 80.991919999999993, 121.48787999999999, 161.98383999999999, 202.47979999999998, 209.4165446035731, 242.97575999999998, 383.51736697098818, 451.56755438353258, 503.98594436505164, 516.26217431475163, 1099.3652534435903]]
Failures = [[68.728006916094003], []]
Draw(Data,Failures)

Answer 1

而不是:

Int_Prob_failures = [int(x) for x in Prob_failure[i] ]
markers_on = Int_Prob_failures
plt.plot(x,Narratives[i],'-gD', markevery=markers_on)

你可以尝试:

index = []
for j in range(len(Prob_failure[i])):
    for k in range(len(Narratives[i])):
        if Prob_failure[i][j] == Narratives[i][k]:
            index.append(k)
plt.plot(x,Narratives[i],'-gD', markevery = index )

markevery 选项采用您想要强调的点的索引。