---
title: "Test document"
author: "Kirill Müller"
date: "October 17, 2017"
output: html_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = FALSE)
library(tidyverse)
```

# Introduction

We will be reviewing a dataset of `r nrow(mpg)` cars. The dataset is listed below.

```{r}
mpg
```

## Relationship between engine displacement and highway mileage

The plot below should *not* surprise us: The larger the engine, the more energy it consumes per distance driven (in $\frac{\text{J}}{\text{km}}$), the less is the mileage per unit of gasoline (in $\frac{\text{miles}}{\text{gallon}}$).

```{r}
ggplot(mpg, aes(displ, hwy)) +
  geom_point()
```

Possible reasons why people would choose a larger engine include:

- ...
- ...
- ...

Introduction

We will be reviewing a dataset of 234 cars. The dataset is listed below.

mpg
## # A tibble: 234 x 11
##    manufac… model   displ  year   cyl trans  drv     cty   hwy fl    class
##    <chr>    <chr>   <dbl> <int> <int> <chr>  <chr> <int> <int> <chr> <chr>
##  1 audi     a4       1.80  1999     4 auto(… f        18    29 p     comp…
##  2 audi     a4       1.80  1999     4 manua… f        21    29 p     comp…
##  3 audi     a4       2.00  2008     4 manua… f        20    31 p     comp…
##  4 audi     a4       2.00  2008     4 auto(… f        21    30 p     comp…
##  5 audi     a4       2.80  1999     6 auto(… f        16    26 p     comp…
##  6 audi     a4       2.80  1999     6 manua… f        18    26 p     comp…
##  7 audi     a4       3.10  2008     6 auto(… f        18    27 p     comp…
##  8 audi     a4 qua…  1.80  1999     4 manua… 4        18    26 p     comp…
##  9 audi     a4 qua…  1.80  1999     4 auto(… 4        16    25 p     comp…
## 10 audi     a4 qua…  2.00  2008     4 manua… 4        20    28 p     comp…
## # ... with 224 more rows

Relationship between engine displacement and highway mileage

The plot below should not surprise us: The larger the engine, the more energy it consumes per distance driven (in \(\frac{\text{J}}{\text{km}}\)), the less is the mileage per unit of gasoline (in \(\frac{\text{miles}}{\text{gallon}}\)).

ggplot(mpg, aes(displ, hwy)) +
  geom_point()

Possible reasons why people would choose a larger engine include:

  • …
  • …
  • …

Copyright © 2017 Kirill Müller. Licensed under CC BY-NC 4.0.