CO2 Emission by Vehicles

# CONTEXT
Hi, I am currently pursuing PGP in Data Science. Recently we were assigned with a project on regression and hypothesis by our Statistics department. While looking for a dataset relevant to my project, I stumbled upon this one.

# CONTENT

This dataset captures the details of how CO2 emissions by a vehicle can vary with the different features. The dataset has been taken from Canada Government official open data website. This is a compiled version. This contains data over a period of 7 years.
There are total 7385 rows and 12 columns. There are few abbreviations that has been used to describe the features. I am listing them out here. The same can be found in the Data Description sheet.

### Model
4WD/4X4 = Four-wheel drive
AWD = All-wheel drive
FFV = Flexible-fuel vehicle
SWB = Short wheelbase
LWB = Long wheelbase
EWB = Extended wheelbase

### Transmission
A = Automatic
AM = Automated manual
AS = Automatic with select shift
AV = Continuously variable
M = Manual
3 - 10 = Number of gears

### Fuel type
X = Regular gasoline
Z = Premium gasoline
D = Diesel
E = Ethanol (E85)
N = Natural gas

### Fuel Consumption
City and highway fuel consumption ratings are shown in litres per 100 kilometres (L/100 km) - the combined rating (55% city, 45% hwy) is shown in L/100 km and in miles per gallon (mpg)

### CO2 Emissions
The tailpipe emissions of carbon dioxide (in grams per kilometre) for combined city and highway driving

# ACKNOWLEDGEMENTS

The data has been taken and compiled from the below Canada Government official link
https://open.canada.ca/data/en/dataset/98f1a129-f628-4ce4-b24d-6f16bf24dd64#wb-auto-6

# QUESTIONS

1. Determine or test the influence of different variables on the emission of CO2.
2. What are the most influencing features that affect the CO2 emission the most?
3. Will there be any difference in the CO2 emissions when Fuel Consumption for City and Highway are considered separately and when their weighted variable interaction is considered?

本数据集详细记录了汽车二氧化碳排放量如何随不同特征而变化的细节。数据集源自加拿大政府官方开放数据网站，为汇编版本，涵盖7年间的数据。数据集包含7385行和12列，其中使用了一些缩写来描述特征。以下为这些缩写的列表，详细内容可在数据描述表中找到。

### 模型
4WD/4X4 = 四轮驱动
AWD = 全轮驱动
FFV = 弹性燃料汽车
SWB = 短轴距
LWB = 长轴距
EWB = 延长轴距

### 变速箱
A = 自动
AM = 自动手动
AS = 自动带选择换挡
AV = 无级变速
M = 手动
3 - 10 = 挡位数

### 燃料类型
X = 普通汽油
Z = 高级汽油
D = 柴油
E = 乙醇（E85）
N = 天然气

### 燃料消耗
城市和高速公路的燃料消耗率以每100公里升（L/100 km）表示，综合评级（55%城市，45%高速公路）以L/100 km和每加仑英里（mpg）表示

### 二氧化碳排放
综合城市和高速公路驾驶的碳 dioxide 尾气排放量（每公里克）

# 致谢
数据收集和汇编自以下加拿大政府官方链接
https://open.canada.ca/data/en/dataset/98f1a129-f628-4ce4-b24d-6f16bf24dd64#wb-auto-6

# 问题
1. 确定或测试不同变量对二氧化碳排放的影响。
2. 哪些特征对二氧化碳排放的影响最为显著？
3. 当单独考虑城市和高速公路的燃料消耗以及其加权变量相互作用时，二氧化碳排放量会有何差异？