Embedding data into RMarkdown documents

example.rmd

# Embedding data into RMarkdown documents

<details>
<summary>Show data</summary>

```{r}
cars <- structure(list(speed = c(4, 4, 7, 7, 8, 9, 10, 10, 10, 11, 11, 
12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 16, 
16, 17, 17, 17, 18, 18, 18, 18, 19, 19, 19, 20, 20, 20, 20, 20, 
22, 23, 24, 24, 24, 24, 25), dist = c(2, 10, 4, 22, 16, 10, 18, 
26, 34, 17, 28, 14, 20, 24, 28, 26, 34, 34, 46, 26, 36, 60, 80, 
20, 26, 54, 32, 40, 32, 40, 50, 42, 56, 76, 84, 36, 46, 68, 32, 
48, 52, 56, 64, 66, 54, 70, 92, 93, 120, 85)), .Names = c("speed", 
"dist"), row.names = c(NA, -50L), class = "data.frame")
```
</details>

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

Only drawback: It's not supported by all browsers, yet.