Getting and Cleaning Data
Title Page
Introduction
1
Philosophies of Data
1.1
What are Data
1.2
Data Frames and Tibbles
1.2.1
Summary
1.2.2
Exercises
1.3
Tidy Data
1.4
Matrix Data
1.5
Hierarchical Data
2
Data from Files
2.1
Tabular Data
2.2
Text
2.3
Images
3
Data from the Web
3.1
Files
3.2
APIs
3.3
Web Scraping
4
Applied Tidying
4.1
Text Manipulation
4.1.1
Regular Expressions
4.2
Dates & Times
4.3
Data Rectangling
4.4
Databases
Published with bookdown
Getting and Cleaning Data
Chapter 4
Applied Tidying
4.1
Text Manipulation
4.1.1
Regular Expressions
stringr
glue
4.2
Dates & Times
lubridate
hms
4.3
Data Rectangling
magrittr
dplyr
tidyr
4.4
Databases