How to access the elements from a Vector in R
In this tutorial, we are going to learn about how to access the elements from a Vector in R with the help of examples.
A vector is a collection of elements that are of same data type. To combine the list of elements in vector we can use the c() function in R.
The c() function takes the list of elements that are strings or numbers , etc as an arguments and create a vector.
Here is an example, a vector of strings:
# vector of strings
fruits = c("apple", "bannana", "grapes")
# print the vector
fruits
Accessing the elements from a Vector
To access the individual elements from a vector, we can use square brackets syntax [] by passing the index or position of a element.
Where the first element index is 1, and the second element index is 2, etc.
Here is an example:
# vector of strings
fruits = c("apple", "bannana", "grapes")
# accesing the first item of a vector
fruits[1]
Output:
"apple"
To access the multiple elements from a vector, we can use the c() function inside the square brackets syntax by passing the multiple index positions.
Here is an example of accessing the 1st and 3rd element from a vector :
# vector of strings
fruits = c("apple", "bannana", "grapes")
# accesing the first and third item of a vector
fruits[c(1, 3)]
Output:
"apple" "grapes"