Getting and Setting Length of the Vectors in R Programming – length() Function

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:

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# R program to illustrate
# length function
  
# Specifing 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)

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Output :


[1] 1
[1] 5



Example 2:













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# R program to illustrate 


# length function 


  


# Specifing 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 



















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Output:


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




    

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