Check whether a value is logical or not in R Programming – is.logical() Function

is.logical() function in R Language is used to check whether a value is logical or not.

Syntax: is.logical(x)

Parameters:
x: Value to be checked

Example 1:

# R Program to test whether 
# a value is logical or not 

# Calling is.logical() function 

is.logical(0) 

is.logical(!5) 

is.logical(T) 

is.logical(FALSE)

Output:

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

Example 2:

# R Program to test whether 
# a value is logical or not 

# Creating vector 

x1 <- c(1, 2, 3, 4) 

x2 <- c(T, F, TRUE, FALSE, ! 2) 

x3 <- c(1, T, F) 

# Calling is.logical() function 

is.logical(x1) 

is.logical(x2) 

is.logical(x3)

Output:

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

Article Tags :

R Language

R Math-Function

R Vector-Function

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