数据可视化-pygal

# 用pygal模拟骰子
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)

from die import Die
import pygal

die = Die()
results = []
# 投骰子的次数
for roll_num in range(1000):
    result = die.roll()
    results.append(result)
print(results)
frequencies = []
for value in range(1, die.num_sides + 1):
    # 记录每个点数出现的次数
    frequency = results.count(value)
    frequencies.append(frequency)
print(frequencies)
# 对结果进行可视化
hist = pygal.Bar()  # 柱状图
hist.title = "Results of rolling a 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")  # 生成一个名为 die_visual的矢量图