Example: R Markdown with HTML Output

This page shows the output of an R Markdown document. The course’s code examples are generated from R Markdown sources.

This is a header

This is an R Markdown document. Markdown is a simple formatting syntax for creating HTML, PDF, and MS Word documents. For more details, see the R Markdown documentation.

When you click Knit in RStudio, the generated document includes your text and the output of embedded R code chunks. You can embed an R code chunk like this:

summary(cars)

##      speed           dist       
##  Min.   : 4.0   Min.   :  2.00  
##  1st Qu.:12.0   1st Qu.: 26.00  
##  Median :15.0   Median : 36.00  
##  Mean   :15.4   Mean   : 42.98  
##  3rd Qu.:19.0   3rd Qu.: 56.00  
##  Max.   :25.0   Max.   :120.00

This is another header

You can also embed plots, for example:

Scatterplot of car speed against stopping distance from the cars dataset.

Note that the echo = FALSE parameter was added to the code chunk to prevent printing of the R code that generated the plot (see below).

Markdown source

Copy the following example into an .Rmd file and click Knit to create an HTML document. The plot is generated from the cars dataset included with R. Generated images are saved in a local figures/ directory.

---
title: "Example: R Markdown with HTML Output"
author: "Thomas Nauss"
output: 
  html_document: 
    keep_md: yes
---
```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
knitr::opts_chunk$set(fig.path = 'figures/')
```

## This is a header

This is an R Markdown document. Markdown is a simple formatting syntax for creating HTML, PDF, and MS Word documents. 
For more details, see the [R Markdown documentation](https://rmarkdown.rstudio.com).

When you click **Knit** in RStudio, the generated document includes your text and the output of embedded R code chunks.
You can embed an R code chunk like this:

```{r}
summary(cars)
```

## This is another header

You can also embed plots, for example:

```{r, echo=FALSE, fig.alt="Scatterplot of car speed against stopping distance from the cars dataset."}
plot(cars)
```

The `echo = FALSE` parameter hides the R code that generates the plot. The `fig.alt` parameter provides alternative text for the image.

More fancy layouts?

For more styling options, see Styling R Markdown documents.

Updated: