How to Access Items in a Vector in R - Step by Step Examples

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How to Access Items in a Vector in R ?

Answer

To access items in a vector in R, you can use indexing and slicing operations.

✐ Examples

1 Access Single Element by Index

In this example,

We create a vector named my_vector containing some elements.
We access a single element from the vector using square brackets [] and specify the index of the element we want to access.
The element at the specified index is returned.
We print the accessed element to the console.

R Program

# Create a vector
my_vector <- c('apple', 'banana', 'cherry', 'date')

# Access single element by index (e.g., index 2)
accessed_element <- my_vector[2]

# Print accessed element
print(accessed_element)

Output

[1] "banana"

2 Access Multiple Elements by Index

In this example,

We create a vector named my_vector containing some elements.
We use a sequence of indices inside square brackets [] to access multiple elements from the vector.
The elements at the specified indices are returned as a new vector.
We print the accessed elements to the console.

R Program

# Create a vector
my_vector <- c('apple', 'banana', 'cherry', 'date')

# Access multiple elements by indices (e.g., indices 1 and 3)
accessed_elements <- my_vector[c(1, 3)]

# Print accessed elements
print(accessed_elements)

Output

[1] "apple"  "cherry"

3 Access Elements Using Logical Condition

In this example,

We create a vector named my_vector containing numeric elements.
We define a logical condition inside square brackets [] to access elements that satisfy the condition.
The elements that meet the condition are returned as a new vector.
We print the accessed elements to the console.

R Program

# Create a numeric vector
my_vector <- c(10, 20, 30, 40, 50)

# Access elements greater than 30
accessed_elements <- my_vector[my_vector > 30]

# Print accessed elements
print(accessed_elements)

Output

[1] 40 50

Summary

In this tutorial, we learned How to Access Items in a Vector in R language with well detailed examples.

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How to Access Items in a Vector in R - Step by Step Examples

How to Access Items in a Vector in R ?

Answer

✐ Examples

1 Access Single Element by Index

R Program

Output

2 Access Multiple Elements by Index

R Program

Output

3 Access Elements Using Logical Condition

R Program

Output

Summary

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