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This program is an example of Machine Learning to predict the CO2 emission of a car based on the size of the engine, like the weight of the car in kilograms and volume of the engine in cubic centimeters, to make the prediction more accurate.
It uses following data file. Copy this data and create a comma separated file (.csv) and save it in the same folder where the python program is saved.
File: data.csv
Car,Model,Volume,Weight,CO2
Toyoty,Aygo,1000,790,99
Mitsubishi,Space Star,1200,1160,95
Skoda,Citigo,1000,929,95
Fiat,500,900,865,90
Mini,Cooper,1500,1140,105
VW,Up!,1000,929,105
Skoda,Fabia,1400,1109,90
Mercedes,A-Class,1500,1365,92
Ford,Fiesta,1500,1112,98
Audi,A1,1600,1150,99
Hyundai,I20,1100,980,99
Suzuki,Swift,1300,990,101
Ford,Fiesta,1000,1112,99
Honda,Civic,1600,1252,94
Hundai,I30,1600,1326,97
Opel,Astra,1600,1330,97
BMW,1,1600,1365,99
Mazda,3,2200,1280,104
Skoda,Rapid,1600,1119,104
Ford,Focus,2000,1328,105
Ford,Mondeo,1600,1584,94
Opel,Insignia,2000,1428,99
Mercedes,C-Class,2100,1365,99
Skoda,Octavia,1600,1415,99
Volvo,S60,2000,1415,99
Mercedes,CLA,1500,1465,102
Audi,A4,2000,1490,104
Audi,A6,2000,1725,114
Volvo,V70,1600,1523,109
BMW,5,2000,1705,114
Mercedes,E-Class,2100,1605,115
Volvo,XC70,2000,1746,117
Ford,B-Max,1600,1235,104
BMW,216,1600,1390,108
Opel,Zafira,1600,1405,109
Mercedes,SLK,2500,1395,120
#Python program expressing simple machine learning application
import pandas
from sklearn import linear_model
df = pandas.read_csv("data.csv")
X = df[['Weight', 'Volume']]
y = df['CO2']
regr = linear_model.LinearRegression()
regr.fit(X, y)
#predict the CO2 emission of a car where the weight is 2300kg, and the volume is 1300cm3:
w=float(input('Enter the Engine weight in kg'))
v=float(input('Enter the Engine volume in cubic centimeters'))
predictedCO2 = regr.predict([[w, v]])
print('\nThe predicted value of CO2 emission based on engine weight and engine volume is=\n',predictedCO2)
print('\nIf the weight increase by 1kg, the CO2 emission increases by ',regr.coef_[0],'grams')
print('if the engine size (Volume) increases by 1 cm3, the CO2 emission increases by',regr.coef_[1],'grams')
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