Getting class of different data types in R Programming – class() Function

class() function in R Language is used to return the class of data used as the arguments.

Syntax: class(x)

Parameters:
x: specified data

Example 1:

# R program to illustrate
# class function

# Specifying "Biochemical oxygen demand"
# data set
x <- BOD
x

# Calling class() function
class(x)

Output:

  Time demand
1    1    8.3
2    2   10.3
3    3   19.0
4    4   16.0
5    5   15.6
6    7   19.8
[1] "data.frame"

Example 2:

# R program to illustrate
# class function

# Calling class() function
# over different types of data
class(2)
class(2.8)
class("3")
class("gfg")
class(1 + 2i)

Output:

[1] "numeric"
[1] "numeric"
[1] "character"
[1] "character"
[1] "complex"