---
title: Plot files
---

The default extension for the `jpeg()` device is `jpeg`, and you can change it to `.jpg` if desired:

```{r, chunk-a, dev = 'jpeg', fig.ext = '.jpg'}
plot(cars)
```

Set the plot size via `fig.dim`:

```{r, chunk-b, fig.dim = c(5, 4)}
plot(cars)
```

Write plot files to a different folder:

```{r, chunk-c, fig.path = 'figures/'}
plot(cars)
```