How to Create a vector of specific type and length in R ?

In this article, we will see how to create a vector of specified type and length in R programming language. To create a vector of specified data type and length in R we make use of function vector(). vector() function is also used to create empty vector.

Syntax:

vector(class of the data object, length of the vector)

There is a very straightforward approach for this.

Steps –

Create vector of required type
Also pass the size to it
Here we can also check the type and size of the vector so created

Implementation combined with this approach paints a better picture.

Example 1:

# Create a vector of type integer, numeric class and length 5 

a <- vector( "integer" , 5 ) 

b <- vector( "numeric" , 5 ) 

# Printing vector a 

print(a) 

# Printing the data type of the vector  

print(typeof(a)) 

# Printing the length of vector a 

print(length(a)) 

# Printing vector b 

print(b) 

# Printing the data type of the vector b 

print(typeof(b)) 

# Printing the length of vector b 

print(length(b))

Output:

[1] 0 0 0 0 0

[1] “integer”

[1] 5

[1] 0 0 0 0 0

[1] “double”

[1] 5

Example 2:

# Create a vector of type logical and length 5 

a <- vector( "logical" , 5 ) 

# Printing vector a 

print(a) 

# Printing the data type of the vector  

print(typeof(a)) 

# Printing the length of vector a 

print(length(a))

Output:

[1] FALSE FALSE FALSE FALSE FALSE

[1] “logical”

[1] 5

Example 3:

# Create a vector of type character and length 5 

a <- vector( "character" , 5 ) 

# Printing vector a 

print(a) 

# Printing the data type of the vector  

print(typeof(a)) 

# Printing the length of vector a 

print(length(a))