Fitting multiple regression
Multiple regression includes multiple predictors and using the same lm
function we can create a model.
Getting ready
You have completed the previous recipes and have installed the car
package. You are also aware of using the lm
function. In this recipe, we will use the Prestige
dataset from the car
package.
How to do it...
Perform the following step to perform multiple regression with lm
:
> head(Prestige) Output: education income women prestige census type gov.administrators 13.11 12351 11.16 68.8 1113 prof general.managers 12.26 25879 4.02 69.1 1130 prof accountants 12.77 9271 15.70 63.4 1171 prof purchasing.officers 11.42 8865 9.11 56.8 1175 prof chemists 14.62 8403 11.68 73.5 2111 prof physicists 15.64 11030 5.13 77.6 2113 prof > str(Prestige) Output 'data.frame': 102 obs. of 6 variables: $ education: num 13.1 12.3 12.8 11.4 14.6 ... $ income : int 12351 25879 9271 8865 8403 11030 8258 14163 11377 11023 ... $ women : num 11.16 4.02 15.7 9.11 11.68 .....