0401_pivoting-tidyr.Rmd

# (PART) Module 04 {-}

# Tidy Data and Pivoting


```{r, warning = FALSE, message = FALSE}
library(tidyverse)
```


## Orientation


### Today

Today's concept is __tidy data__ and the `tidyr` package.

- Reshaping data by pivoting with `tidyr::pivot_longer()` and `tidyr::pivot_wider()`.


### Resources

For concepts of tidy data: 

- [Jenny Bryan's intro to tidy data](https://github.com/jennybc/lotr-tidy/blob/master/01-intro.md) is short and sweet.
  - the repo this links to has some useful exercises too, but uses the older `spread()` and `gather()` functions.
- `tidyr` [vignette on tidy data](https://cran.r-project.org/web/packages/tidyr/vignettes/tidy-data.html).
- [Hadley's paper on tidy data](https://vita.had.co.nz/papers/tidy-data.pdf) provides a thorough investigation.

For pivoting with `tidyr`, check out the [pivot vignette](https://tidyr.tidyverse.org/articles/pivot.html).