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We mentioned Vectors when we introduced data types earlier. In R, vectors are a list-like structure that contain items of the same data type.
Take a look here:
spring_months <- c("March", "April","May","June")
In the example above, we created a new variable with the value of a new vector. We created this vector by separating four character strings with a comma and wrapping them inside c()
.
A few things you should know how to do with vectors:
- You can check the type of elements in a vector by using
typeof(vector_name)
- You can check the length of a vector by using
length(vector_name)
- You can access individual elements in the vector by using
[]
and placing the element position inside the brackets. For example, if we wanted to access the second element we would write:vector_name[2]
. Note: In R, you start counting elements at position one, not zero.
Instructions
1.
Create a numeric vector named phone
that contains your phone number as three numbers: your area code, the next three digits, and then the last four.
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