Regular Sequences Vol. 2 Exercises
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[For this exercise, first write down your answer, without using R. Then, check your answer using R.]
Answers to the exercises are available here.
Exercise 1
if x <- c(a = 1, b = 2,c=3,d=4)
What is the output for the code:
seq(5,11,along.with =x)
Exercise 2
If x= seq(4,12,4)
,
what is the output for the code:
rep(x,each=2)
Exercise 3
What is the output for the code:
seq(5,11,by=2,length.out=3)
Exercise 4
What is the output for the code:
rep(letters[1:10],3)
Exercise 5
Create a sequence with values:
100 95 90 85 80 75 70 65 60 55 50
Exercise 6
What is the output for the code:
seq(10,0,by=5)
Exercise 7
What is the output for the code:
seq(2,10,by=4)==c(2,6,10)
Exercise 8
What is the output for the code:
rep(c('seq','rep'),each=4)
Exercise 9
Consider two variables, A and B,
A= as.Date("2016-11-01")
B = as.Date("2016-11-15")
What is the output for the code:
seq.Date(A,B, by = "1 day")
Exercise 10
Consider two variables, C and D,
C= as.Date("2016-02-01")
D = as.Date("2016-06-15")
What is the output for the code:
seq.Date(D,C, by = "-1 month")
Want to practice regular sequences a bit more? We have more exercise sets on this topic here.
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