Convert a Vector into Factor in R Programming - as.factor() Function

Convert an Unordered Factor to an Ordered Factor in R Programming – as.ordered() Function

Last Updated : 04 Jun, 2020

as.ordered() function in R Language takes an unordered factor as argument and converts it into an ordered factor.

Syntax: as.ordered(factor)

Parameters:
factor: Unordered Factor to be converted

Example 1:

# Creating a vector  
x<-c("North", "North", "East", "West")  
  
# Converting vector into factor 
Directions <- factor(x) 
  
# Using as.ordered() Function 
# to order an unordered factor 
as.ordered(Directions) 

Output:

[1] North North East  West 
Levels: East < North < West

Example 2:

# creating vector size  
size = c("small", "large", "large", "small",   
         "medium", "large", "medium", "medium")    
sizes <- ordered(c("small", "large", "large",  
                   "small", "medium"))  
    
# Using as.ordered() Function 
# to order an unordered factor 
as.ordered(sizes) 

Output:

[1] small  large  large  small  medium
Levels: large < medium < small

Convert a Vector into Factor in R Programming - as.factor() Function

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