05 - Multi Linear Regression.txt

Problem 01
Prepare a prediction model for profit of 50_startups data.
Do transformations for getting better predictions of profit and
make a table containing R^2 value for each prepared model.

R&D Spend -- Research and devolop spend in the past few years
Administration -- spend on administration in the past few years
Marketing Spend -- spend on Marketing in the past few years
State -- states from which data is collected
Profit  -- profit of each state in the past few years


Problem 02
Consider only the below columns and prepare a prediction model for predicting Price.

Corolla<-Corolla[c("Price","Age_08_04","KM","HP","cc","Doors","Gears","Quarterly_Tax","Weight")]

Model -- model of the car
Price -- Offer Price in EUROs	
Age_08_04 -- Age in months as in August 2004	
Mfg_Month -- Manufacturing month (1-12)	
Mfg_Year -- Manufacturing Year
KM -- Accumulated Kilometers on odometer
Fuel_Type -- Fuel Type (Petrol, Diesel, CNG)
HP -- Horse Power
Met_Color -- Metallic Color? (Yes=1, No=0)
Color -- Color (Blue, Red, Grey, Silver, Black, etc.)
Automatic -- Automatic (Yes=1, No=0)
cc -- Cylinder Volume in cubic centimeters
Doors -- Number of doors
Cylinders -- Number of cylinders
Gears -- Number of gear positions
Quarterly_Tax -- Quarterly road tax in EUROs
Weight -- Weight in Kilograms
Mfr_Guarantee -- Within Manufacturer's Guarantee period (Yes=1, No=0)
BOVAG_Guarantee -- BOVAG (Dutch dealer network) Guarantee (Yes=1, No=0)
Guarantee_Period -- Guarantee period in months
ABS -- Anti-Lock Brake System (Yes=1, No=0)
Airbag_1 -- Driver_Airbag (Yes=1, No=0)
Airbag_2 -- Passenger Airbag (Yes=1, No=0)
Airco -- Airconditioning (Yes=1, No=0)
Automatic_airco -- Automatic Airconditioning  (Yes=1, No=0)
Boardcomputer -- Boardcomputer (Yes=1, No=0)
CD_Player -- CD Player (Yes=1, No=0)
Central_Lock -- Central Lock (Yes=1, No=0)
Powered_Windows -- Powered Windows  (Yes=1, No=0)
Power_Steering -- Power Steering (Yes=1, No=0)
Radio -- Radio (Yes=1, No=0)
Mistlamps -- Mistlamps  (Yes=1, No=0)
Sport_Model -- Sport Model  (Yes=1, No=0)
Backseat_Divider -- Backseat Divider  (Yes=1, No=0)
Metallic_Rim --Metallic Rim  (Yes=1, No=0)
Radio_cassette -- Radio Cassette  (Yes=1, No=0)
Tow_Bar -- Tow Bar  (Yes=1, No=0)