8efd88ab27d0ec70819110c9c1ba180a9c568fbe
				
			
			
		
	Hi Hadwick. Thanks for putting this book together. I don't believe these a data frame called carrier and the example here is joining flights2 and airlines by the key carrier.
R packages
This is code and text behind the R for data science book.
The site is built using bookdown
The R packages used in this book can be installed via
devtools::install_github("hadley/r4ds")
To create the site, you also need:
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