Markdown Quick Reference

R Markdown is an easy-to-write plain text format for creating dynamic documents and reports. See Using R Markdown to learn more.

Emphasis

*italic*   **bold**

_italic_   __bold__

Headers

# Header 1

## Header 2

### Header 3

Lists

Unordered List
* Item 1
* Item 2
    + Item 2a
    + Item 2b
Ordered List
1. Item 1
2. Item 2
3. Item 3
    + Item 3a
    + Item 3b

Manual Line Breaks

End a line with two or more spaces:

Roses are red,   
Violets are blue.

Links

Use a plain http address or add a link to a phrase:

http://example.com

[linked phrase](http://example.com)

Images

Images on the web or local files in the same directory:

![alt text](http://example.com/logo.png)

![alt text](figures/img.png)

Blockquotes

A friend once said:

> It's always better to give 
> than to receive.

R Code Blocks

R code will be evaluated and printed

```{r}
summary(cars$dist)
summary(cars$speed)
```

Inline R Code

There were `r nrow(cars)` cars studied

Plain Code Blocks

Plain code blocks are displayed in a fixed-width font but not evaulated

```
This text is displayed verbatim / preformatted
```

Inline Code

We defined the `add` function to 
compute the sum of two numbers.

LaTeX Equations

Inline Equation
$equation$
Display Equation
$$ equation $$

Horizontal Rule / Page Break

Three or more asterisks or dashes:

******

------

Tables

First Header  | Second Header
------------- | -------------
Content Cell  | Content Cell
Content Cell  | Content Cell

Reference Style Links and Images

Links
A [linked phrase][id]. 

At the bottom of the document:

[id]: http://example.com/ "Title"
Images
![alt text][id]

At the bottom of the document:

[id]: figures/img.png "Title"

Miscellaneous

superscript^2^

subscript~2~

~~strikethrough~~

Typographic Entities

ASCII characters are transformed into typographic HTML entities: