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目录
一、项目介绍
1.1项目简介
1.2技术工具
1.3页面概述
二、项目步骤
2.1登录模块
2.2注册模块
2.3训练模型模块
2.3.1导入数据
2.3.2查看数据
2.3.3数据预处理
2.3.4数据可视化
2.3.5特征工程
2.3.6构建模型
2.3.7保存模型
2.4预测房价模块
2.4查看房价信息模块
三、项目总结
一、项目介绍
1.1项目简介
本项目使用Flask框架搭建基于机器学习的南昌市租房价格预测系统 （简易版）
其中关于Flask知识点可参考文章Flask全套知识点从入门到精通，学完可直接做项目
其中关于南昌市租房价格预测可参考文章基于XGBoost算法构造房屋租赁价格评估模型
整个项目分为以下几个模块：
- 1.登录和注册模块
- 2.训练模型模块
- 3.预测价格模块
- 4.查看房价信息模块
项目文件框架如下:
其中manager.py为主程序，password.csv为存储用户账号密码的文件，lianjia是房租价格原始数据集，model.pkl是经过机器学习算法训练出的模型。
1.2技术工具
IDE编辑器：vscode
后端框架：Flask
前端框架：Bootstrap
1.3页面概述
运行manager.py程序后，浏览器打开http://127.0.0.1:5000/
映入眼帘的登录页面，有账号的话就之间输入用户名和密码，没有就点击Sign up先注册再登录
注册页面如下：
登录后进入主页面如下：
在导航栏中有训练模型、预测价格、查看房价信息、退出模块
训练模型模块如下：
需要依次按照步骤进行构建模型
预测房价模块：
在预测模块只需要输入地区、装修情况、楼层情况、电梯情况、房屋面积即可，每个输入类型都有提示（必须按照提示信息填写）
示例如下，填完信息后点击预测即可得到预测的房价信息：
查看房价信息模块：
在查看房价信息模块默认展示的是全部数据，当然你也可以通过输入价格区间进行筛选。
二、项目步骤
2.1登录模块
manager.py
class LoginView(views.MethodView):
def __jump(self,error=None):
return render_template('login.html',error=error)
def get(self, error=None):
return self.__jump()
def post(self):
uname = request.form['username']
pwd = int(request.form['password'])
if uname and pwd:
data = pd.read_csv('password.csv')
for index,item in enumerate(data.values,1):
if uname == item[0] and pwd == item[1]:
return redirect('/main')
if index == len(data):
return self.__jump(error="用户名或者密码错误")
else:
return self.__jump(error="用户名或者密码不能为空")
app.add_url_rule('/login/',view_func=LoginView.as_view('my_login'))login.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>登录</title>
<style>
* {
margin: 0;
padding: 0;
}
html {
height: 100%;
}
body {
height: 100%;
}
.container {
height: 100%;
background-image: linear-gradient(to right, #999999, #330867);
}
.login-wrapper {
background-color: bisque;
width: 358px;
height: 588px;
border-radius: 15px;
padding: 0 50px;
position: relative;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
.header {
font-size: 38px;
font-weight: bold;
text-align: center;
line-height: 200px;
}
.input-item {
display: block;
width: 100%;
margin-bottom: 20px;
border: 0;
padding: 10px;
border-bottom: 1px solid rgb(128, 125, 125);
font-size: 15px;
outline: none;
}
.input-item::placeholder {
text-transform: uppercase;
}
.btn {
text-align: center;
padding: 10px;
width: 100%;
margin-top: 40px;
background-image: linear-gradient(to right, #a6c1ee, #fbc2eb);
color: #fff;
}
.msg {
text-align: center;
line-height: 88px;
}
a {
text-decoration-line: none;
color: #abc1ee;
}
</style>
</head>
<body>
<div class="container">
<div class="login-wrapper">
<form action="/login/" method="post">
<div class="header">Login</div>
<div class="form-wrapper">
<input type="text" name="username" placeholder="username" class="input-item">
<input type="password" name="password" placeholder="password" class="input-item">
{% if error %}
<font color="red">{{ error }}</font>
{% endif %}
<input class="btn" type="submit" value="立即登录">
</div>
<div class="msg">
Don't have account?
<a href="{{url_for('my_register')}}">Sign up</a>
</div>
</form>
</div>
</div>
</body>
</html>2.2注册模块
manager.py
# 注册类视图
class RegisterView(views.MethodView):
def __jump(self,error=None):
return render_template('register.html',error=error)
def get(self,error=None):
return self.__jump()
def post(self):
# 模拟实现
uname = request.form['username']
pwd = request.form['password']
print(uname,pwd)
if uname and pwd:
with open('password.csv','a',encoding='utf-8',newline='\n')as f:
cswriter = csv.writer(f)
cswriter.writerow((uname,pwd))
f.flush()
return redirect('/login')
else:
return self.__jump(error="用户名或者密码不能为空")
app.add_url_rule('/register/',view_func=RegisterView.as_view('my_register'))register.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>注册</title>
<style>
* {
margin: 0;
padding: 0;
}
html {
height: 100%;
}
body {
height: 100%;
}
.container {
height: 100%;
background-image: linear-gradient(to right, #999999, #330867);
}
.login-wrapper {
background-color: bisque;
width: 358px;
height: 588px;
border-radius: 15px;
padding: 0 50px;
position: relative;
left: 50%;
top: 50%;
transform: translate(-50%,-50%);
}
.header {
font-size: 38px;
font-weight: bold;
text-align: center;
line-height: 200px;
}
.input-item {
display: block;
width: 100%;
margin-bottom: 20px;
border: 0;
padding: 10px;
border-bottom: 1px solid rgb(128,125,125);
font-size: 15px;
outline: none;
}
.input-item::placeholder {
text-transform: uppercase;
}
.btn {
text-align: center;
padding: 10px;
width: 100%;
margin-top: 40px;
background-image: linear-gradient(to right,#a6c1ee, #fbc2eb);
color: #fff;
}
.msg {
text-align: center;
line-height: 88px;
}
a {
text-decoration-line: none;
color: #abc1ee;
}
</style>
</head>
<body>
<div class="container">
<div class="login-wrapper">
<form action="/register/" method="post">
<div class="header">Register</div>
<div class="form-wrapper">
<input type="text" name="username" placeholder="username" class="input-item">
<input type="password" name="password" placeholder="password" class="input-item">
<!-- <a href="{{url_for('my_login')}}"><div class="btn">Submit</div></a> -->
{% if error %}
<font color="red">{{ error }}</font>
{% endif %}
<input class="btn" type="submit" value="Submit">
</div>
</form>
</div>
</div>
</body>
</html>
2.3训练模型模块
2.3.1导入数据
manager.py
@app.route('/load_data')
def load_data():
return render_template('load_data.html')load_data.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>导入数据</title>
<link rel="stylesheet" href="../static/bootstrap.min.css">
<link rel="stylesheet" href="../static/main.css">
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-xl-2">
<div class="top" style="margin-top: 40px;margin-left: 40px;">
<ul class="nav flex-column">
<li class="nav-item" >
<a class="nav-link" href="" >
<button type="button" class="btn btn-outline-primary" disabled>1.导入数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('see_data')}}">
<button type="button" class="btn btn-outline-primary">2.查看数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>3.数据预处理</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>4.数据可视化</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>5.特征工程</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>6.构建模型</button>
</a>
</li>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>7.保存模型</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('index')}}">
<button type="button" class="btn btn-outline-primary" disabled>返回首页</button>
</a>
</li>
</ul>
</div>
</div>
<div class="col-xl-10" style="margin-top: 10px;">
<div class="card">
<div class="card-body">
<div class="card-body">
<img src="../static/img/load_data.png" width="1160px">
<br>
<br>
<p>导入数据成功！！！</p>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>2.3.2查看数据
manager.py
@app.route('/see_data')
def see_data():
return render_template('see_data.html')see_data.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>查看数据</title>
<link rel="stylesheet" href="../static/bootstrap.min.css">
<link rel="stylesheet" href="../static/main.css">
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-xl-2">
<div class="top" style="margin-top: 40px;margin-left: 40px;">
<ul class="nav flex-column">
<li class="nav-item" >
<a class="nav-link" href="" >
<button type="button" class="btn btn-outline-primary" disabled>1.导入数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>2.查看数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('dispose_data')}}">
<button type="button" class="btn btn-outline-primary">3.数据预处理</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>4.数据可视化</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>5.特征工程</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>6.构建模型</button>
</a>
</li>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>7.保存模型</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('index')}}">
<button type="button" class="btn btn-outline-primary" disabled>返回首页</button>
</a>
</li>
</ul>
</div>
</div>
<div class="col-xl-10" style="margin-top: 10px;">
<div class="card">
<div class="card-body">
<p>数据大小为：（1500,13）</p>
<p>数据基本信息为：</p>
<img src="../static/img/see_data1.png">
<br>
<br>
<p>数值型数据描述为：</p>
<img src="../static/img/see_data2.png">
<br>
<br>
<p>非数值型数据描述为：</p>
<br>
<img src="../static/img/see_data3.png">
</div>
</div>
</div>
</div>
</div>
</body>
</html>2.3.3数据预处理
manager.py
@app.route('/dispose_data')
def dispose_data():
return render_template('dispose_data.html')dispose_data.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>数据预处理</title>
<link rel="stylesheet" href="../static/bootstrap.min.css">
<link rel="stylesheet" href="../static/main.css">
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-xl-2">
<div class="top" style="margin-top: 40px;margin-left: 40px;">
<ul class="nav flex-column">
<li class="nav-item" >
<a class="nav-link" href="" >
<button type="button" class="btn btn-outline-primary" disabled>1.导入数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>2.查看数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>3.数据预处理</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('display_data')}}">
<button type="button" class="btn btn-outline-primary" >4.数据可视化</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>5.特征工程</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>6.构建模型</button>
</a>
</li>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>7.保存模型</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('index')}}">
<button type="button" class="btn btn-outline-primary" disabled>返回首页</button>
</a>
</li>
</ul>
</div>
</div>
<div class="col-xl-10">
<div class="card" style="margin-top: 20px;">
<div class="card-body">
<p>查看数据缺失值情况：</p>
<img src="../static/img/dispose_data.png">
<br>
<br>
<p>检测数据是否存在重复值：True</p>
<p>删除重复值前的数据的大小：（1500,13）</p>
<p>删除重复值后的数据的大小：（1445,13）</p>
<p>数据预处理完毕！！！</p>
</div>
</div>
</div>
</div>
</div>
</body>
</html>2.3.4数据可视化
manager.py
@app.route('/display_data')
def display_data():
return render_template('display_data.html')display_data.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>数据可视化</title>
<link rel="stylesheet" href="../static/bootstrap.min.css">
<link rel="stylesheet" href="../static/main.css">
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-xl-2">
<div class="top" style="margin-top: 40px;margin-left: 40px;">
<ul class="nav flex-column">
<li class="nav-item" >
<a class="nav-link" href="" >
<button type="button" class="btn btn-outline-primary" disabled>1.导入数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>2.查看数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>3.数据预处理</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>4.数据可视化</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('feature_engineering')}}">
<button type="button" class="btn btn-outline-primary">5.特征工程</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>6.构建模型</button>
</a>
</li>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>7.保存模型</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('index')}}">
<button type="button" class="btn btn-outline-primary" disabled>返回首页</button>
</a>
</li>
</ul>
</div>
</div>
<div class="col-xl-10" style="margin-top: 10px;">
<div class="card" >
<div class="card-body">
<img src="../static/img/display_data4.png">
<img src="../static/img/display_data3.png">
<img src="../static/img/display_data2.png" width="1160px">
<img src="../static/img/display_data1.png" width="1160px">
</div>
</div>
</div>
</div>
</div>
</body>
</html>2.3.5特征工程
manager.py
@app.route('/feature_engineering')
def feature_engineering():
return render_template('feature_engineering.html')feature_engineering.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>特征工程</title>
<link rel="stylesheet" href="../static/bootstrap.min.css">
<link rel="stylesheet" href="../static/main.css">
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-xl-2">
<div class="top" style="margin-top: 40px;margin-left: 40px;">
<ul class="nav flex-column">
<li class="nav-item" >
<a class="nav-link" href="" >
<button type="button" class="btn btn-outline-primary" disabled>1.导入数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>2.查看数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>3.数据预处理</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>4.数据可视化</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>5.特征工程</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('build_model')}}">
<button type="button" class="btn btn-outline-primary" >6.构建模型</button>
</a>
</li>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>7.保存模型</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('index')}}">
<button type="button" class="btn btn-outline-primary" disabled>返回首页</button>
</a>
</li>
</ul>
</div>
</div>
<div class="col-xl-10">
<div class="card" style="margin-top: 20px;">
<div class="card-body">
<img src="../static/img/feature_engineering.png" >
<br>
<br>
<p>特征工程完毕！！！</p>
</div>
</div>
</div>
</div>
</div>
</body>
</html>2.3.6构建模型
manager.py
@app.route('/build_model')
def build_model():
return render_template('build_model.html')build_model.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>构建模型</title>
<link rel="stylesheet" href="../static/bootstrap.min.css">
<link rel="stylesheet" href="../static/main.css">
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-xl-2">
<div class="top" style="margin-top: 40px;margin-left: 40px;">
<ul class="nav flex-column">
<li class="nav-item" >
<a class="nav-link" href="{{url_for('load_data')}}" >
<button type="button" class="btn btn-outline-primary">1.导入数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>2.查看数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>3.数据预处理</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>4.数据可视化</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>5.特征工程</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>6.构建模型</button>
</a>
</li>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('save_model')}}">
<button type="button" class="btn btn-outline-primary">7.保存模型</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('index')}}">
<button type="button" class="btn btn-outline-primary" disabled>返回首页</button>
</a>
</li>
</ul>
</div>
</div>
<div class="col-xl-10">
<div class="card" style="margin-top: 20px;">
<div class="card-body">
<p>Model is: RandomForestRegressor()</p>
<p>Training score: 0.9049714978258847</p>
<p>r2 score is: 0.5589430756516771</p>
<p>MAE: 451.4159751799188</p>
<p>MSE: 450572.2871418395</p>
<p>RMSE: 671.2468153681174</p>
<br>
<p>真实值和预测值的差值图如下：</p>
<img src="../static/img/build_model1.png" alt="">
<img src="../static/img/build_model2.png" alt="">
</div>
</div>
</div>
</div>
</div>
</body>
</html>2.3.7保存模型
manager.py
@app.route('/save_model')
def save_model():
return render_template('save_model.html')save_model.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>构建模型</title>
<link rel="stylesheet" href="../static/bootstrap.min.css">
<link rel="stylesheet" href="../static/main.css">
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-xl-2">
<div class="top" style="margin-top: 40px;margin-left: 40px;">
<ul class="nav flex-column">
<li class="nav-item" >
<a class="nav-link" href="{{url_for('load_data')}}" >
<button type="button" class="btn btn-outline-primary">1.导入数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>2.查看数据</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>3.数据预处理</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>4.数据可视化</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>5.特征工程</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>6.构建模型</button>
</a>
</li>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="">
<button type="button" class="btn btn-outline-primary" disabled>7.保存模型</button>
</a>
</li>
<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor" class="bi bi-arrow-down" viewBox="0 0 16 16" style="margin-left: 60px;">
<path fill-rule="evenodd" d="M8 1a.5.5 0 0 1 .5.5v11.793l3.146-3.147a.5.5 0 0 1 .708.708l-4 4a.5.5 0 0 1-.708 0l-4-4a.5.5 0 0 1 .708-.708L7.5 13.293V1.5A.5.5 0 0 1 8 1z"/>
</svg>
<li class="nav-item" >
<a class="nav-link" href="{{url_for('main')}}">
<button type="button" class="btn btn-outline-primary">返回首页</button>
</a>
</li>
</ul>
</div>
</div>
<div class="col-xl-10">
<div class="card" style="margin-top: 20px;">
<div class="card-body">
<p>模型保存成功！！！</p>
<br>
</div>
</div>
</div>
</div>
</div>
</body>
</html>2.4预测房价模块
manager.py
class PredictView(views.MethodView):
def __jump(self,result=None,error=None):
return render_template('predict_price.html',result=result,error=error)
def get(self, result=None,error=None):
return self.__jump()
def post(self):
try:
address = request.form['address']
derection = request.form['derection']
floor = request.form['floor']
elevator = request.form['elevator']
area = float(request.form['area'])
new_data = pd.DataFrame(data=[[address,derection,area,floor,elevator]],columns=['address','derection','area','floor','elevator'])
new_data['address'].replace(to_replace={'南昌县':0,'红谷滩':1,'新建区':2,'高新区':3,'东湖区':4,'西湖区':5,'经开区':6,'青山湖区':7,'青云谱区':8,'湾里区':9,'进贤县':10},inplace=True)
new_data['derection'].replace(to_replace={'精装修':1,'简装修':0},inplace=True)
new_data['floor'].replace(to_replace={'高':0,'中':1,'低':2},inplace=True)
new_data['elevator'].replace(to_replace={'有':1,'无':0},inplace=True)
predict = model.predict(new_data)[0]
return self.__jump(result=predict)
except:
return self.__jump(error='输入数据格式不对，请重新输入！')
app.add_url_rule('/predict_price/',view_func=PredictView.as_view('my_predict'))predict_price.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>预测租房价格</title>
<link rel="stylesheet" href="../static/bootstrap.min.css">
<link rel="stylesheet" href="../static/main.css">
</head>
<body>
<div class="container">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="{{url_for('main')}}">首页</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNavAltMarkup">
<div class="navbar-nav">
<a class="nav-link" href="{{url_for('train_model')}}">训练模型<span class="sr-only">(current)</span></a>
<a class="nav-link active" href="{{url_for('predict_price')}}">预测租房价格</a>
<a class="nav-link" href="{{url_for('my_look')}}">查看租房价格信息</a>
</div>
</div>
</nav>
<div class="container-fluid">
<div class="row">
<div class="col col-lg-2">
</div>
<div class="col-md-auto">
<form action="/predict_price/" method="post">
<div class="form-group row">
<label for="inputPassword" class="col-sm-4 col-form-label">请选择地区：</label>
<div class="col-sm-8">
<input type="text" placeholder="南昌县/红谷滩/新建区/..." name="address" class="form-control">
</div>
</div>
<div class="form-group row">
<label for="inputPassword" class="col-sm-4 col-form-label">装修类型：</label>
<div class="col-sm-8">
<input type="text" placeholder="简装修/精装修" name="derection" class="form-control">
</div>
</div>
<div class="form-group row">
<label for="inputPassword" class="col-sm-4 col-form-label">楼层情况：</label>
<div class="col-sm-8">
<input type="text" placeholder="高/中/低" name="floor" class="form-control">
</div>
</div>
<div class="form-group row">
<label for="inputPassword" class="col-sm-4 col-form-label">电梯情况：</label>
<div class="col-sm-8">
<input type="text" placeholder="有/无" name="elevator" class="form-control">
</div>
</div>
<div class="form-group row">
<label for="inputPassword" class="col-sm-4 col-form-label">房屋面积：</label>
<div class="col-sm-8">
<input type="text" placeholder="㎡" name="area" class="form-control" id="inputPassword">
</div>
<button style="margin-left: 10px;" type="submit" class="btn btn-primary">预测</button>
</form>
</div>
{% if error %}
<font color="red">{{ error }}</font>
{% endif %}
{% if result %}
<font color="red">预测的房价为：{{ result }}</font>
{% endif %}
<div class="col col-lg-2">
</div>
</div>
</div>
</div>
</body>
</html>2.4查看房价信息模块
manager.py
class LookPriceView(views.MethodView):
def __jump(self,houses=None,error=None):
return render_template('look_house_price.html',houses=houses,error=error)
def get(self, houses=None,error=None):
data = pd.read_csv('lianjia.csv')
houses = []
for item in data.values:
house = {}
house['address'] = item[1]
house['price'] = item[2]
house['lease method'] = item[3]
house['layout'] = item[4]
house['derection'] = item[5]
house['area'] = item[6]
house['orientation'] = item[7]
house['floor'] = item[8]
house['elevator'] = item[9]
house['water'] = item[10]
house['power'] = item[11]
house['gas'] = item[12]
houses.append(house)
return self.__jump(houses=houses)
def post(self):
try:
min_price = float(request.form['min'])
max_price = float(request.form['max'])
data = pd.read_csv('lianjia.csv')
data = data[(data['price']>min_price) & (data['price']<max_price)]
houses = []
for item in data.values:
house = {}
house['address'] = item[1]
house['price'] = item[2]
house['lease method'] = item[3]
house['layout'] = item[4]
house['derection'] = item[5]
house['area'] = item[6]
house['orientation'] = item[7]
house['floor'] = item[8]
house['elevator'] = item[9]
house['water'] = item[10]
house['power'] = item[11]
house['gas'] = item[12]
houses.append(house)
return self.__jump(houses=houses)
except:
return self.__jump(error='输入数据格式不对，请重新输入！')
app.add_url_rule('/look_price/',view_func=LookPriceView.as_view('my_look'))look_house_price.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>查看租房价格信息</title>
<link rel="stylesheet" href="../static/bootstrap.min.css">
<link rel="stylesheet" href="../static/main.css">
</head>
<body>
<div class="container">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="{{url_for('main')}}">首页</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNavAltMarkup">
<div class="navbar-nav">
<a class="nav-link" href="{{url_for('train_model')}}">训练模型<span class="sr-only">(current)</span></a>
<a class="nav-link" href="{{url_for('predict_price')}}">预测租房价格</a>
<a class="nav-link active" href="{{url_for('my_look')}}">查看租房价格信息</a>
</div>
</div>
</nav>
<div>
<form action="/look_price/" method="post">
<div class="form-group row">
<label for="inputPassword" class="col-sm-2 col-form-label">请输入价格区间：</label>
<div class="col-sm-3">
<input type="text" placeholder="1000" name="min" class="form-control">
</div>
<div class="col-sm-1">
——
</div>
<div class="col-sm-3">
<input type="text" placeholder="2000" name="max" class="form-control">
</div>
<div class="col-sm-3">
<input type="submit" value="搜索" class="btn btn-primary">
</div>
</div>
</form>
<section class="counts section-bg">
<div class="container">
<table class="table text-nowrap">
<tr class="text-center">
<td>address</td>
<td>lease method</td>
<td>layout</td>
<td>derection</td>
<td>area</td>
<td>orientation</td>
<td>floor</td>
<td>elevator</td>
<td>water</td>
<td>power</td>
<td>gas</td>
<td>price</td>
</tr>
{% for house in houses %}
<tr class="text-center">
<td>{{ house.address }}</td>
<td>{{ house['lease method'] }}</td>
<td>{{ house.layout }}</td>
<td>{{ house.derection }}</td>
<td>{{ house.area }}</td>
<td>{{ house.orientation }}</td>
<td>{{ house.floor }}</td>
<td>{{ house.elevator }}</td>
<td>{{ house.water }}</td>
<td>{{ house.power }}</td>
<td>{{ house.gas }}</td>
<td>{{ house.price }}</td>
</tr>
{% endfor %}
</table>
</div>
</section><!-- End Counts Section -->
</div>
</div>
</body>
</html>三、项目总结
本次我们使用了Flask框架结合了基于机器学习的房价预测模型，构建了一个简易版基于机器学习的南昌市租房价格预测系统，整个项目还有很多地方可以优化，比如页面美化、模块添加等等，这些就留给学习的小伙伴根据自身需求进行创新升级！喜欢本项目的话就三连支持一下啦！
