Check if a Function is a Primitive Function in R Programming - is.primitive() Function

Check if a Factor is an Ordered Factor in R Programming - is.ordered() Function

Last Updated : 08 Nov, 2021

is.ordered() function in R Programming Language is used to check if the passed factor is an ordered factor.

Syntax: is.ordered(factor)

Parameters:

factor: Factor to be checked

is.ordered() Function in R Programming Example

Example 1: Demonestration of R - is.ordered() Function

R

# Creating a vector 
x<-c("female", "male", "male", "female") 

# Converting vector into factor
gender <- factor(x)

# Using is.ordered() Function
# to check if a factor is ordered
is.ordered(gender)

Output:

[1] FALSE

Example 2:

R

# creating vector size 
size = c("small", "large", "large", "small",  
         "medium", "large", "medium", "medium")   
sizes <- ordered(c("small", "large", "large", 
                   "small", "medium")) 
  
# ordering the levels 
sizes <- ordered(sizes, levels = c("small", "medium", 
                                   "large"))     

# Checking if the factor is ordered
# using is.ordered() function
is.ordered(sizes)

Output:

[1] TRUE

Check if a Function is a Primitive Function in R Programming - is.primitive() Function

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