The `yarrr`

package contains a mixture of functions and datasets that support my e-book YaRrr! The pirate’s guide to R. The most notable function in the package is `pirateplot()`

. A pirateplot shows the relationship between a categorical independent variable and a numeric dependent variable. However, in contrast to notoriously deceptive barplots, a pirateplot reveals patterns in data by showing Raw data (as points), Descriptive statistics (as lines and/or bars), and Inferential statistics (as bands).

You can install the most stable version of `yarrr`

from CRAN, or the latest developer version from GitHub as follows:

```
install.packages("yarrr")
# devtools::install_github("ndphillips/yarrr", build_vignettes = TRUE) # developer version
```

Here is an example of a pirateplot showing the relationship between the age and weight of chickens:

```
# Create a pirateplot from the ChickWeight data
yarrr::pirateplot(formula = weight ~ Time,
data = ChickWeight,
main = "A Pirateplot of chicken weights by time")
```

The `pirateplot()`

function contains many arguments that allow you to easily customise the look of the plot, from the colors, to the element transparencies. To learn more, look at the `pirateplot()`

vignette on CRAN.