Replicate elements of vector in R programming rep() Method (original) (raw)

Last Updated : 28 Apr, 2025

In the R programming language, A very useful function for creating a vector by repeating a given numbervector with the specified number of times is the rep().

The general structure of rep() : rep(v1,n1).

Here, v1 is repeated n1 times.

R - replicate elements of vector

The forms of rep() functions :

• rep(v1, times=)
• rep(v1, each=)
• rep(v1, length=)

Example 1:

R `

Replicate '0' 5 time

rep(0, 5)

`

Output:

[1] 0 0 0 0 0

Example 2:

rep(v1, times=)

R `

1,2,3 repeated 3 times in sequencially

rep(1:3,times=3)

`

Output:

[1] 1 2 3 1 2 3 1 2 3

Example 3:

rep(v1, each=)

R `

1,2,3 repeated 3 times

rep(1:3,each=3)

`

Output:

[1] 1 2 3 1 2 3 1 2 3

Example 4:

rep(v1, length=)

R `

generate a vector 1,2,3

x<-1:3

vector x is replicated such that the

length is five.

rep(x, length=5)

`

Output:

1 2 3 1 2

Example 5:

R `

1 is replicated 2 times, and so on

rep(x,c(2,1,3))

`

Output:

1 1 2 3 3 3