* Minor edit + link to style guide
* Fix reference
* If you don't know order of operations, not clear
* Alt text + minor edits
* Add median and fix reference
* Move up mult groups up to discuss summarise msg
* Go over grouping again
* Part rename
* Chapter rename
* Clean up section labels to avoid dups
* Update comment
* Switch part order
* Move columnwise to transform
In transform.Rmd (Chapter 5, Data Transformation), under Counts (5.6.3),
we removed na.rm = TRUE when computing mean because all NAs for
arr_delay were already removed when creating not_cancelled dataset.
Further to {tidyselect} documentation "one_of() is retired in favour of the more precise any_of() and all_of() selectors." this exercise (5.4.1) should be updated to be in-line with current functionality.
* Fix a few minor typos
Examples include saying we'll learn about filter() in the next chapter, but it's not until chapter 5. And, also, it says we'll learn about how to use multiple geoms in the same plot in the next section, but then not far below, in the same section, it shows how to use multiple geoms.
* Three minor fixes in chapter 5
* Remove " I introduced in prior commit
* little different to -> a little differently from
* reorder to match order in following code/table
* capitalization
* capitalization + punctuation
* replace / with or since it's hard to see between tt formatted code
* missing pronoun
* they're been -> they've been
* lets need apostrophe
* Instead of display -> Instead of displaying
* missing comma
* add mapping in front of aes in a bunch of locations
* adding mapping before aes for sections before the last section where it explicitly says from here on out we'll omit them to make calls simpler
* minor typos in last exercise in common problems
* unusually easiest -> unusually easy
* move mapping(aes()) into geom to match other ggplot calls
* wording suggestion in exercise + typo fix
* feel be free -> feel free
* and new dataset -> and a new dataset, missing a
* dplyr overwrite's'