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  1. Feb 2019
  2. jrnold.github.io jrnold.github.io
    12 Tidy Data | R for Data Science: Exercise Solutions
    1
    1. JohnOLeary 19 Feb 2019
      sum(cases)

      Must be na.rm = TRUE inside the sum parenthesis for the below graph to appear otherwise it will just be a blank graph.

      By the way thanks so much for these solutions, they are extremely helpful and teach things which are not taught in the book!

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    URL

    jrnold.github.io/r4ds-exercise-solutions/tidy-data.html
  3. Jan 2019
  4. jrnold.github.io jrnold.github.io
    5 Data transformation | R for Data Science: Exercise Solutions
    1
    1. JohnOLeary 22 Jan 2019
      dep_delay

      This should be arr_delay not dep_delay

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    URL

    jrnold.github.io/r4ds-exercise-solutions/transform.html