Exercise 16.3.7
Confirm my hypothesis that flights that departed in minutes 20-30 and 50-60 are more likely to have departed early than on time or late. Hint: create a binary variable that tells you whether or not a flight departed early.
7 Matching Annotations
- Feb 2021
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jrnold.github.io jrnold.github.io
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- Jan 2021
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jrnold.github.io jrnold.github.io
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Explain your findings.
There doesn't seem to be a solution for this
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jrnold.github.io jrnold.github.io
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str_split(x, ", +(and +)?")[[1]]
optionally drop + (both): str_split(x, ", (and )?")[[1]]
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what a pattern
what pattern
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colour_match
Maybe the intention here was colour_match2 (with the knock on impact on the str_view_all(...) such that only the 2 relevant strings are shown, not 3)
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- Dec 2020
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jrnold.github.io jrnold.github.io
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Pitching
Exercise 13.3.3 (final sub-task):
The Pitching table is mislabeled as Fielding in the diagram (though it is clear from the listed PKs)
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Master
Exercise 13.3.3 Questions have you compare 3 data sets, one of which is call "People" while in Answers the same is called "Master" (verified in R: identical(Master, People) == TRUE) Posted 2020-12-28
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