Introduced a new section titled “Sneak peek at data wrangling” (after 8.2) to serve as the trailer section.
Chapter 9:
Added information on the functions head() and tail().
Provided details about the optional input parameter “n”.
Chapter 10:
In the main content:
Modified the rename() example.
Added an example showcasing the use of the unite() function.
In section 10.2:
Omitted the use of the pipe (%>%).
Appended an example at the end to illustrate the use of a pipe.
Chapter 11:
Introduced the case_when() function within the mutate() context.
Chapter 12:
The chapter underwent a comprehensive restructuring, with inessential paragraphs being transferred to tbd.rmd.
Repository-Level Updates:
The _output.yml file's GitHub link was updated.
Modifications were made to index.Rmd and _main.Rmd, specifically in updating author information, their corresponding links, and feedback. Additionally, all references to Dave have been excised.
Exercise Updates and Modifications:
Chapter 10 Exercise Updates:
Adapted to utilize air quality data.
Removed bad data cleaning, since it was not covered in this chapter.
Changed the graphing portion to be time series.
Chapter 11 Exercise Modifications:
For exercise 2, transitioned from ifelse() to case_when().
Exercise 3 now has an equation: NO3 + O3 (= Ox).
Implemented the removal of rows containing negative values as the first exercise (visualize, fix, and then visualize).
An additional visualization component has been introduced, showcasing an Ox and O3 scatterplot.
Chapter 12 Exercise Additions:
Two new exercises have been incorporated into the chapter.
Note!: docs files are not commited just yet.
Content Updates and Modifications: Chapter 8:
Exercise Updates and Modifications: Chapter 10 Exercise Updates: