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  1. Apr 2019
  2. jrnold.github.io jrnold.github.io
    21 Iteration | R for Data Science: Exercise Solutions
    1
    1. liuminzhao 04 Apr 2019
      .

      or

      mtcars %>% map_dbl(mean)
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    jrnold.github.io/r4ds-exercise-solutions/iteration.html
  3. jrnold.github.io jrnold.github.io
    16 Dates and times | R for Data Science: Exercise Solutions
    1
    1. liuminzhao 02 Apr 2019
      %%

      should not be %/% ?

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    jrnold.github.io/r4ds-exercise-solutions/dates-and-times.html