What is the is.integer() function in R?

Overview

In R, the is.integer() function is used to test if a given R object is of type integer or not.

Syntax

is.integer(x)
Syntax for the is.integer() function in R

Parameter

This function takes a single parameter value, x, representing any R object to be tested.

Return value

This function returns TRUE if the object is an integer. Otherwise, it returns FALSE.

Example

# creating R objects

my_doubles1 <- c(1.1 , 2.2 , 3.3, 4.4 )

my_doubles2 <- c(1   , 2   , 3  , 4   )

my_integers <- c(1L  , 2L  , 3L , 4L  )

my_random   <- c(1L  , 2L  , 3L , 4   )





#implementing the is.integer() function 

is.integer(my_doubles1)

is.integer(my_doubles2)

is.integer(my_integers)

is.integer(my_random)

Explanation

  • Lines 2–5: We create different R objects containing numerical values.
  • Lines 9–12: We use the is.integer() function to check to see if each of the objects is an integer type or not.
Note: The object my_integers is the only integer type object among all of them. Interestingly, the object my_doubles2 is not an integer object but a double.
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