Append Operation on Vectors in R Programming
In this article, let us discuss different methods to concatenate/append values to a vector in R Programming Language.
Append method in R
Vectors in the R Programming Language is a basic objects consisting of sequences of homogeneous elements. vector can be integer, logical, double, character, complex, or raw. Values can be appended/concatenated in a vector using 2 methods.
- c() function
- append() function
- Using indexing
1. Append operation using c() function
c() function is a generic function that combines data into a vector or a list.
Syntax: c(…)
Parameters:
…: represents objects to be concatenated
To know about more optional parameters, use the below command in the console:
help("c")
Append using c() function
r
x <- 1:5
n <- 6:10
y <- c (x, n)
print (y)
|
Output:
[1] 1 2 3 4 5 6 7 8 9 10
Append method using c() function for different type of variables
r
x <- 1:5
n <- letters [1:5]
y <- c (x, n)
print (y)
typeof (y)
typeof (x)
typeof (n)
|
Output:
[1] "1" "2" "3" "4" "5" "a" "b" "c" "d" "e"
[1] "character"
[1] "integer"
[1] "character"
2. Append operation using append() function
append() function in R is used for merging vectors or adding more elements to a vector.
Syntax: append(x, values)
Parameters:
x: represents a vector to which values has to be appended to
values: represents the values which has to be appended in the vector
Append operation using append() function
r
x <- 1:5
x <- append (x, 6:10)
print (x)
|
Output:
[1] 1 2 3 4 5 6 7 8 9 10
Append operation using append() function for different type of variables
r
x <- 1:5
y <- letters [1:5]
x <- append (x, values = y)
print (x)
|
Output:
[1] "1" "2" "3" "4" "5" "a" "b" "c" "d" "e"
3. Append operation Using indexing
We can also append elements using indexing. we can assign values to indices beyond the length of the vector to append new elements.
R
my_vector <- c (1, 2, 3, 4)
my_vector[5] <- 5
my_vector[6] <- 6
my_vector
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Output:
[1] 1 2 3 4 5 6
Last Updated :
28 Nov, 2023
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