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Congratulations – you survived the quiz!
Apparently the quiz is quite difficult: After just over 60 participants, only around one third of the questions were answered correctly. So I made a video to provide some background information.
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Frage 1 von 14
1. Frage
Which of the following statements about the origin of R are correct?
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Frage 2 von 14
2. Frage
Which of the these R expressions result in the following output?
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Tipp
„Everything that happens is a function call.“
(John Chambers, creator of S) -
Frage 3 von 14
3. Frage
Where can you find the following quote?
„R is the world’s most powerful programming language for statistical computing, machine learning and graphics and has a thriving global community of users, developers and contributors.“
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Tipp
MRAN = Microsoft R Application Network
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Frage 4 von 14
4. Frage
Which of the following statements about R programming are true?
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Frage 5 von 14
5. Frage
What does CRAN stand for?
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A++ Abstraction plus reference plus synthesis
NPL = NORD Programming Language -
Frage 6 von 14
6. Frage
Suppose we run this command:
a <- matrix(1:8, nrow = 2)
Then, which of the following R expressions result in:
[1] 8
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Frage 7 von 14
7. Frage
Which of the following packages by Hadley Wickham are currently on CRAN?
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Frage 8 von 14
8. Frage
Which of the following is NOT an R package that Hadley Wickham has written (or contributed to)?
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There is a package called meow by Alex M. Chubaty that fetches random cat photos.
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Frage 9 von 14
9. Frage
Who does the pipe operator %>% relate to?
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There is an R package called magrittr.
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Frage 10 von 14
10. Frage
What does caret (name of a great R package) stand for?
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Frage 11 von 14
11. Frage
Caret is a great package for Machine Learning in R.
Which of the following is NOT a valid resampling method in trainControl?
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Frage 12 von 14
12. Frage
Undefined numbers: There is more than just NA in R.
Which of the following expressions results in:[1] NaN
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Tipp
Be aware, there is also „Inf“.
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Frage 13 von 14
13. Frage
Which of the following are NOT systems for object oriented programming in R?
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Frage 14 von 14
14. Frage
Which of the following R expressions result in:
[1] 8
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