Exercise

Spread rows into columns

In this exercise, you'll use the tidyr, dplyr, and readr packages to tidy the ratings2 data after using dplyr::count(). The tidy_ratings_all data should have four variables to work with:

series (integer: 1-8),
episode (integer: 1-10),
days (integer: 7 or 28), and
viewers (numeric).

Instructions 1/3

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Start by gathering all columns that end with "day" into two columns: episode and viewers. Separate the key column into two columns named episode and days. Both of these two separated columns need to be parsed as numbers also, within a mutate.