python散点图实例之随机漫步

#random_walk.py
from random import choice
# -*- coding: utf-8 -*-
class RandomWalk():
  #一个生成随机漫步数据的类

  def __init__(self,num_points=5000):
   self.num_points=num_points
   self.x_values=[0]
   self.y_values=[0]

  def fill_walk(self):
   #计算随机漫步包含的所有点

   while len(self.x_values)

#rw.py
# coding=gbk
import matplotlib.pyplot as plt
from random_walk import RandomWalk


while True:
  rw=RandomWalk()
  rw.fill_walk()

  #设置绘图窗口的尺寸
  plt.figure(dpi=128,figsize=(10,6))

  point_numbers=list(range(rw.num_points))
  plt.scatter(rw.x_values,rw.y_values,c=point_numbers,cmap=plt.cm.Blues,s=15)

  #突出起点和终点
  plt.scatter(0,0,c='green',s=100)
  plt.scatter(rw.x_values[-1],rw.y_values[-1],c='red',s=100)

  #隐藏坐标轴
  plt.axes().get_xaxis().set_visible(False)
  plt.axes().get_yaxis().set_visible(False)

  plt.show()

  keep_running=input("Make another walk&＃63;(y/n):")
  if keep_running=='n':
   break