How to Reverse the order of given vector in R ?

How to reverse the order of given vector in R?

Last Updated : 30 May, 2021

In this article, we will discuss how to reverse the order of elements in a vector in R Programming Language.

It can be done using the rev() function. It returns the reverse version of data objects.

Syntax: rev(x)

Parameter: x: Data object

Returns: Reverse of the data object passed

Example 1: Here we will create a vector and reverse it with rev() function.

R

# create vector with names 
vec = c("sravan", "mohan", "sudheer", 
         "radha", "vani", "mohan") 
  
print("Original vector-1:") 
print(vec) 
rv = rev(vec) 
  
print("The said vector in reverse order:") 
print(rv) 

Output:

[1] “Original vector-1:”

[1] “sravan” “mohan” “sudheer” “radha” “vani” “mohan”

[1] “The said vector in reverse order:”

[1] “mohan” “vani” “radha” “sudheer” “mohan” “sravan”

Example 2: Here we will create multiple vectors and then reverse them.

R

# create vector with names 
name = c("sravan", "mohan", "sudheer", 
         "radha", "vani", "mohan") 
  
# create vector with subjects 
subjects = c(".net", "Python", "java",  
             "dbms", "os", "dbms") 
  
# create a vector with marks 
marks = c(98, 97, 89, 90, 87, 90) 
  
# create vector with height 
height = c(5.97, 6.11, 5.89, 
           5.45, 5.78, 6.0) 
  
# create vector with weight 
weight = c(67, 65, 78, 
           65, 81, 76) 
  
# pass these vectors to the vector 
data = c(name, subjects, marks, 
         height, weight) 
# display 
print("Original vector-1:") 
print(data) 
rv = rev(data) 
  
print("The said vector in reverse order:") 
print(rv) 

Output:

[1] “Original vector-1:”

[1] “sravan” “mohan” “sudheer” “radha” “vani” “mohan” “.net”

[8] “Python” “java” “dbms” “os” “dbms” “98” “97”

[15] “89” “90” “87” “90” “5.97” “6.11” “5.89”

[22] “5.45” “5.78” “6” “67” “65” “78” “65”

[29] “81” “76”

[1] “The said vector in reverse order:”

[1] “76” “81” “65” “78” “65” “67” “6”

[8] “5.78” “5.45” “5.89” “6.11” “5.97” “90” “87”

[15] “90” “89” “97” “98” “dbms” “os” “dbms”

[22] “java” “Python” “.net” “mohan” “vani” “radha” “sudheer”

[29] “mohan” “sravan”

How to Reverse the order of given vector in R ?

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