Errata

Errata for Expert Data Wrangling with R

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The errata list is a list of errors and their corrections that were found after the product was released.

The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.

Color Key: Serious technical mistake Minor technical mistake Language or formatting error Typo Question Note Update

Version	Location	Description	Submitted by	Date submitted
Other Digital Version	Conclusion video	In the last video of the series "Expert Data Wrangling with R", Garrett gives a final project to test one's skills. The code that he shows for generating the boxplot graph of all airlines and their arrival delays misses two lines. Namely, before trying to left_join flights with airlines, both columns of airlines must be converted to characters: airlines$carrier <- as.character(airlines$carrier) airlines$name <- as.character(airlines$name) If they are not converted, there are hundreds of levels in the factor variables corresponding to the airlines columns, which make the boxplot graph unusable.	Anonymous	Jul 20, 2015
Other Digital Version	xxx Video - Data Tidying - Combine Data Sets - Slide dplyr::left_join	Video. On slide titled "dplyr::left_join ": change "songs" data set to "songs2" to obtain the correct outcome.	Everdeen	Aug 23, 2015