index.Rmd

---
knitr: bookdown::render_book
title: "Data Wrangling"
author: "Sara Altman, Bill Behrman, Hadley Wickham"
description: "A collection of readings on data wrangling."
url: 'https\://dcl-wrangle.stanford.edu'
github-repo: dcl-docs/wrangle
site: bookdown::bookdown_site
documentclass: book
bibliography: references.bib
link-citations: true
---

# Welcome {-}

This book is a practical introduction to data wrangling using the tidyverse.

In the following, we used these packages:

```{r echo=FALSE}
sessioninfo::package_info(
  pkgs = 
    c(
      "dcldata",
      "googlesheets4",
      "httr",
      "janitor",
      "jsonlite",
      "nycflights13",
      "rvest",
      "tidycensus",
      "tidyverse",
      "usethis",
      "ussf"
    ),
  dependencies = FALSE
) |> 
  tibble::as_tibble() |> 
  dplyr::mutate(Source = stringr::str_remove(source, "@\\w*")) |> 
  dplyr::select(Package = package, Version = ondiskversion, Source) |> 
  knitr::kable()
```

## An evolving book {-}

This book is not intended to be static. Starting in January 2020, we use this book to teach data wrangling in the Stanford [Data Challenge Lab](https://datalab.stanford.edu/challenge-lab) (DCL) course. The DCL functions as a testing ground for educational materials, as our students give us routine feedback on what they read and do in the course. We use this feedback to constantly improve our materials, including this book. The [source for the book](https://github.com/dcl-docs/wrangle) is also available on GitHub where we welcome suggestions for improvements.

This work is licensed under a [Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License](http://creativecommons.org/licenses/by-nc-sa/4.0/).