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Check if an Object is of Type Numeric in R Programming – is.numeric() Function
  • Last Updated : 16 Jun, 2020

is.numeric() function in R Language is used to check if the object passed to it as argument is of numeric type.

Syntax: is.numeric(x)

Parameters:
x: Object to be checked

Example 1:




# R program to check if 
# object is of numeric type
  
# Calling is.numeric() function
is.numeric(1)
is.numeric(1.5)
is.numeric(-1.5)

Output:



[1] TRUE
[1] TRUE
[1] TRUE

Example 2:




# R program to check if 
# object is of numeric type
  
# Creating a matrix
x1 <- matrix(c(1:9), 3, 3)
  
# Calling is.numeric() function
is.numeric(x1)

Output:

[1] TRUE

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