How to create an empty vector in R ?
In this article, we are going to see how to create an empty vector in R Programming Language. There are five ways of creating an empty vector and each of them will be discussed in detail below:
- Using c()
- Using vector()
- Creating empty vectors using NULL
- Using numeric() method
- Using rep() method
Method 1: Using c()
Here in this, we need not pass anything while creating an empty vector as we are creating empty vector.
Syntax:
vector name <- c()
Where, vector name can be any valid identifier.
Example :
R
# Here we are creating empty # vector using c(). vect <- c () vect |
Output:
NULL
Output is null as we are not passing any data to it.
Method 2: Using vector()
Here in this, we need not pass anything as we are creating an empty vector:
Syntax:
vector name <- vector()
Where, vector name can be any valid identifier.
Example
R
# Here we are creating empty vector # using vector(). vect <- vector () vect |
Output:
logical(0)
Output is empty as we are not passing any data.
Method 3: Creating empty vectors using NULL
Here we are creating empty vector by passing null.
Syntax:
vector name <- NULL
Where, vector name can be any valid identifier.
Example
R
# Here we are creating empty # vector using NULL a<- NULL a |
Output:
NULL
Method 4:Using numeric() method
Here we are creating empty vector by using numeric().
Syntax:
vector name <- numeric()
Where, vector name can be any valid identifier.
Example
R
# creating empty vector vec using # numeric function. vec <- numeric () vec |
Output:
numeric(0)
Method 5:Using rep() method
Here we can directly use rep() to create empty vector.
Syntax:
vector name<- rep()
where, vector name can be any valid identifier.
Example:
R
# creating empty vector vec using # numeric function. vec <- rep () vec |
Output:
NULL
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