Analysis of Mtcars Dataset
ra!nz
15 August 2018
Objectives
The Objectives of this analysis is to ;
- show the mtcars dataset
- plot graph weight(wt)_against_miles per gallon (mpg)
Mtcars Dataset Description
| item | Details |
|---|---|
| Description | The data was extracted from the 1974 Motor Trend US magazine, and comprises fuel consumption and 10 aspects of automobile design and performance for 32 automobiles (1973-74 models). |
| Format | A data frame with 32 observation on 11 variable. |
| Variable | - mpg:miles per gallon - cyl:number of cylinders - disp |
Loading Mtcars Dataset
This is how to load the build-in dataset named mtcars
library(datasets)
library(ggplot2)
str(mtcars)
'data.frame': 32 obs. of 11 variables:
$ mpg : num 21 21 22.8 21.4 18.7 18.1 14.3 24.4 22.8 19.2 ...
$ cyl : num 6 6 4 6 8 6 8 4 4 6 ...
$ disp: num 160 160 108 258 360 ...
$ hp : num 110 110 93 110 175 105 245 62 95 123 ...
$ drat: num 3.9 3.9 3.85 3.08 3.15 2.76 3.21 3.69 3.92 3.92 ...
$ wt : num 2.62 2.88 2.32 3.21 3.44 ...
$ qsec: num 16.5 17 18.6 19.4 17 ...
$ vs : num 0 0 1 1 0 1 0 1 1 1 ...
$ am : num 1 1 1 0 0 0 0 0 0 0 ...
$ gear: num 4 4 4 3 3 3 3 4 4 4 ...
$ carb: num 4 4 1 1 2 1 4 2 2 4 ...
plotting graph weight againts MPG
