How to append Element(s) to Vector in R?

R – Append Element(s) to Vector

In this tutorial, we will learn how to append one or more elements to vector in R programming Language.

To append one or more elements to a vector in R, call append() function and pass the vector and the element(s) to it as arguments.

Syntax

The syntax to append element(s) to vector x is

append(x, values, after = length(x))

where

Parameter	Description
x	[Mandatory] Vector to which element(s) has to be appended.
values	[Mandatory] Element(s) that are appended.
after	[Optional] The position after which the element(s) are appended.

append() does not modify the original vector, but creates and returns a new vector with the elements of original vector appended with given values. So, if we want to update the original vector, we have assign the returned value of the function to the original vector itself.

Examples

Append an Element to a Vector

In this example, we take a vector x with three elements, and append an element to it using append() function.

Example.R

x <- c(2, 4, 6)
x <- append(x, 8)
print(x)

Output

[1] 2 4 6 8

Append Multiple Elements to a Vector

In this example, we will append four elements to the vector x.

Example.R

x <- c(2, 4, 6)
values <- c(8, 10, 12, 14)
x <- append(x, values)
print(x)

Output

[1]  2  4  6  8 10 12 14

Conclusion

In this R Tutorial, we learned how to append one or more elements to a vector in R, with the help of example programs.