How to Create, Access, and Modify Vector Elements in R ?
In this article, we are going to create, modify and access vector elements in the R Programming language. Vector is a one-dimensional data structure that holds multiple data type elements.
Creating a vector:
It can be done in these ways:
- Using c() function.
- Using : operator.
- Using seq() function.
Method 1: Using C() function.
The c() function in R Language is used to combine the arguments passed to it. We can create a vector by using c()
Syntax: c(value1,value2,……..,value n)
Where, c stands for combine, values are the input data to the vector.
Example 1: So in this program, we are going to create elements from 1 to 20 and display it
Example 2: In this example, we are going to create a vector with different data type elements and display it.
Character type, float type, and int type are used. Int type data is created by using the range operator
Method 2: Using : operator.
We can use : operator to creates the series of numbers in sequence for a vector.
 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Method 3: Using seq() function.
seq() function is used to create a sequence of elements in a Vector. It takes the length and difference between values as optional argument.
Syntax: seq(from, to, by, length.out)
from: Starting element of the sequence
to: Ending element of the sequence
by: Difference between the elements
length.out: Maximum length of the vector
 1 3 5 7 9  1.0 2.5 4.0 5.5 7.0 8.5 10.0
Modifying vector elements
We can modify the vector elements by using  operator
Where index_value is the element index location
Example 1: In this example, we are going to create a vector with 5 integer type elements and modifying the 1st and 2nd elements as 100 and 200
Example 2: R program to modify the entire vector at a time.
In this example, we are going to modify the elements from 1 to 20 with 1010 to 120 at a time.
Access vector elements
We can access vector elements using the indexing operator –  and Indexing starts from 1.
Example 1: R program to display values in a vector
In this example, we are going to create the vector with elements from 100 to 200 using range operator and going to access the 1st, 12th and 13th elements.
Example 2: Display all the elements in a vector
In this example, we created a vector with integer data type elements from 100 to 199, with range operator and display all