Python数据分析——谁才是《三体》的主角？
内容导读
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内容图文
准备工作
matplotlib库
三体.txt（utf-8编码）
三体主要人物.txt（utf-8编码）
大纲
导入matplotlib.pyplot方法，创建1个Novel类，包含2个属性和4个方法。
import matplotlib.pyplot as plt
class Novel():
"""创建一个小说的类"""
def __init__(self, novel_name, roles_name):
"""初始化类的属性"""
def one_role_nums(self, role_name):
"""统计一个人物名字出现的次数"""
def main_roles_nums(self):
"""统计主要人物名字出现的次数"""
def show_datas(self):
"""输出人物名字及出现次数"""
def draw_picture(self, title = ""):
"""可视化数据"""
初始化
def __init__(self, novel_name, roles_name):
"""初始化类的属性"""
self.novel_name = novel_name
self.roles_name = roles_name
one_role_nums方法
def one_role_nums(self, role_name):
"""统计一个人物名字出现的次数"""
with open(self.novel_name, encoding = 'utf-8') as f:
content = f.read()
count = 0
if len(role_name) < 2 or len(role_name) > 4:
return 0
if len(role_name) == 2:
for i in range(len(content) - 1):
if content[i] + content[i + 1] == role_name:
count += 1
if len(role_name) == 3:
for i in range(len(content) - 2):
if content[i] + content[i + 1] + content[i + 2]== role_name:
count += 1
if len(role_name) == 4:
for i in range(len(content) - 3):
if content[i] + content[i + 1] + content[i + 2] + content[i + 3] == role_name:
count += 1
return count
main_roles_nums方法
def main_roles_nums(self):
"""统计主要人物名字出现的次数"""
with open(self.roles_name, encoding = 'utf-8') as f:
names = [line.strip() for line in f.readlines()]
dic = {}
for name in names:
num = self.one_role_nums(name)
if num:
dic[name] = num
dic = sorted(dic.items(), key = lambda k : k[1], reverse = True)
return dic
show_datas方法
def show_datas(self):
"""输出人物名字及出现次数"""
dic = self.main_roles_nums()
for x in dic:
print(x[0], x[1])
draw_picture方法
def draw_picture(self, title = ""):
"""可视化数据"""
dic = self.main_roles_nums()
names, nums = [], []
for x in dic:
names.append(x[0])
nums.append(x[1])
n = list(range(len(names)))
plt.figure(figsize=(12, 9))
plt.bar(n, nums, alpha=0.5)
plt.xlim((0, len(names)))
plt.xticks(n, names, rotation = 30, fontproperties = "SimHei", fontsize = 24)
plt.title(title, fontproperties = "SimHei", fontsize = 40)
plt.show()
创建对象并调用方法
novel = Novel("三体.txt", "三体主要人物.txt")
novel.show_datas()
novel.draw_picture("三体主要人物名字出现次数")
全部代码
import matplotlib.pyplot as plt
class Novel():
"""创建一个小说的类"""
def __init__(self, novel_name, roles_name):
"""初始化类的属性"""
self.novel_name = novel_name
self.roles_name = roles_name
def one_role_nums(self, role_name):
"""统计一个人物名字出现的次数"""
with open(self.novel_name, encoding = 'utf-8') as f:
content = f.read()
count = 0
if len(role_name) < 2 or len(role_name) > 4:
return 0
if len(role_name) == 2:
for i in range(len(content) - 1):
if content[i] + content[i + 1] == role_name:
count += 1
if len(role_name) == 3:
for i in range(len(content) - 2):
if content[i] + content[i + 1] + content[i + 2]== role_name:
count += 1
if len(role_name) == 4:
for i in range(len(content) - 3):
if content[i] + content[i + 1] + content[i + 2] + content[i + 3] == role_name:
count += 1
return count
def main_roles_nums(self):
"""统计主要人物名字出现的次数"""
with open(self.roles_name, encoding = 'utf-8') as f:
names = [line.strip() for line in f.readlines()]
dic = {}
for name in names:
num = self.one_role_nums(name)
if num:
dic[name] = num
dic = sorted(dic.items(), key = lambda k : k[1], reverse = True)
return dic
def show_datas(self):
"""输出人物名字及出现次数"""
dic = self.main_roles_nums()
for x in dic:
print(x[0], x[1])
def draw_picture(self, title = ""):
"""可视化数据"""
dic = self.main_roles_nums()
names, nums = [], []
for x in dic:
names.append(x[0])
nums.append(x[1])
n = list(range(len(names)))
plt.figure(figsize=(12, 9))
plt.bar(n, nums, alpha=0.5)
plt.xlim((0, len(names)))
plt.xticks(n, names, rotation = 30, fontproperties = "SimHei", fontsize = 24)
plt.title(title, fontproperties = "SimHei", fontsize = 40)
plt.show()
novel = Novel("三体.txt", "三体主要人物.txt")
novel.show_datas()
novel.draw_picture("三体主要人物名字出现次数")
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