import numpy as np
import matplotlib.pyplot as plt
import os, re

speed = 0.001
conts = []
x = []
for i in range(18):  # ファイル 0.001 ~ 0.01
    x = x.append(i)
    dir = 'stop-data' + str(speed) + '/'
    num_lines = 0
    for j in range(1, 10357):
        num_lines += sum(1 for line in open(dir + str(j) + '-stopped.txt'))

    conts = conts.append(num_lines)

y = conts
plt.plot(x, y)