This post is an example showing how to write a post in R markdown. In particular, there is an Rmd block that generates a figure and a second Rmd block that generates a nicely formatted table.

YAML

Start with the usual YAML header:

---
layout: post
title:  "R Markdown Example"
date:   2015-10-01 19:00:00
tags: knitr authoring markdown R CRAN example
---

Plots

Next add the Rmd to generate a plot:

```{r qplot, fig.width=6, fig.height=4.5, dev='svg', echo=TRUE}
library(ggplot2)
summary(cars)
qplot(speed, dist, data=cars) + geom_smooth()
```

output

library(ggplot2)
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

qplot(speed, dist, data=cars) + geom_smooth()

Tables

And the Rmd for a table:

```{r xtable, results="asis", echo=TRUE}
library(xtable)
options(xtable.html.table.attributes = "class='foobar'")
n <- 100
x <- rnorm(n)
y <- 2*x + rnorm(n)
out <- lm(y ~ x)
tab <- xtable(summary(out)$coef, digits=c(0, 2, 2, 1, 2))
print(tab, type="html")
```

output

library(xtable)
options(xtable.html.table.attributes = "class='foobar'")
n <- 100
x <- rnorm(n)
y <- 2*x + rnorm(n)
out <- lm(y ~ x)
tab <- xtable(summary(out)$coef, digits=c(0, 2, 2, 1, 2))
print(tab, type="html")