python编程---example28

die.py

from random import randint

class Die():
	def __init__(self,num_sides=6):
		self.num_sides = num_sides

	def roll(self):
		return randint(1,self.num_sides)

 

die_visual.py

import pygal

from die import Die

die = Die()

results = []
for roll_num in range(1000):
	result = die.roll()
	results.append(result)

frequencies = []
for value in range(1,die.num_sides+1):
	frequency = results.count(value)
	frequencies.append(frequency)

hist = pygal.Bar()

hist.title = "Results of rolling one D6 1000 times."
hist.x_labels = ['1', '2', '3', '4', '5', '6']
hist.x_title = "Result"
hist.y_title = "Frequency of Result"

hist.add('D6', frequencies)
hist.render_to_file('die_visual.svg')

 

 

dice_visual.py

import pygal

from die import Die

die_1 = Die()
die_2 = Die()

results = []
for roll_num in range(1000):
	result = die_1.roll() + die_2.roll()
	results.append(result)

frequencies = []
max_result = die_1.num_sides + die_2.num_sides
for value in range(2, max_result+1):
	frequency = results.count(value)
	frequencies.append(frequency)

hist = pygal.Bar()

hist.title = "Result of rolling two D6 dice 1000 times."
hist.x_labels = ['2', '3', '4', '5', '6', '7', '8', '9', '10', '11', '12']
hist.x_title = "Result"
hist._y_title = "Frequency of Result"

hist.add('D6 + D6', frequencies)
hist.render_to_file('dice_visual.svg')