Creating Vectors in R
Vectors can be analyzed in a few different ways in R.
One way is to create the vector yourself, and there are a few different means by which you can do this.
The rep() command in R creates a vector that repeats the same element a prescribed number of times,
while the seq() command creates a vector that follows a prescribed pattern.
A vector can be manually created by using the c() command, which stands for "concatenate".
This exercise is part of the course
Linear Algebra for Data Science in R
Exercise instructions
Use the example creating a vector of three
3's to create a vector of four4's using therep()command.Use the example creating the vector containing the numbers
2, 4, and6in order, to create the vector containing1,3, and5in order using theseq()command.The prompts to the first two questions have been created using the
c()command. Provide the answers to the first two the same way, using thec()command.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Creating three 3's and four 4's, respectively
rep(3, 3)
rep(4, ___)
# Creating a vector with the first three even numbers and the first three odd numbers
seq(2, 6, by = 2)
seq(1, 5, by = ___)
# Re-creating the previous four vectors using the 'c' command
c(3, 3, 3)
c(___, 4, ___, 4)
c(2, 4, 6)
c(___, 3, ___)