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Getting and Setting Length of the Vectors in R Programming – length() Function
  • Last Updated : 26 Feb, 2021

length() function in R Language is used to get or set the length of a vector (list) or other objects.
 

Syntax: length(x)
Parameters: 
x: vector or object 
 

Example 1: 
 

Python3




# R program to illustrate
# length function
 
# Specifying some vectors
x <- c(6)
y <- c(1, 2, 3, 4, 5)
 
# Calling length() function
# to get length of the vectors
length(x)
length(y)

Output : 
 



[1] 1
[1] 5

Example 2: 
 

Python3




# R program to illustrate
# length function
 
# Specifying some vectors
x <- c(3)
y <- c(1, 2, 3, 4, 5)
z <- c(1, 2, 3, 4, 5)
 
# Setting length of the vector
length(x) <- 2
length(y) <- 7
length(z) <- 3
 
# Getting elements of the
# new vectors
x
y
z

Output: 
 

[1]  3 NA
[1]  1  2  3  4  5 NA NA
[1] 1 2 3

 

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