setup.Rmd

# Setup

This section describes how the code in the book is set up.

## Packages

Here are the packages used by the code in this book.  The last three are my own:
[tidyxl](https://nacnudus.github.io/tidyxl),
[unpivotr](https://nacnudus.github.io/unpivotr) and
[smungs](https://github.com/nacnudus/smungs).  You will need to install the
latest versions from CRAN or GitHub.

```{r}
library(tidyverse)
library(readxl)
library(tidyxl)
library(unpivotr)
library(smungs) # GitHub only https://github.com/nacnudus/smungs
```

## Data

The examples draw from a spreadsheet of toy data, included in the
[unpivotr](https://nacnudus.github.io/unpivotr) package.  It is recommended to
[download](https://github.com/nacnudus/unpivotr/raw/master/inst/extdata/worked-examples.xlsx)
the spreadsheet and have open it in a spreadsheet application while you read the
book.

```{r}
path <- system.file("extdata", "worked-examples.xlsx", package = "unpivotr")
```