Check whether a value is logical or not in R Programming – is.logical() Function
Last Updated :
16 Jun, 2020
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:
is .logical( 0 )
is .logical(! 5 )
is .logical(T)
is .logical(FALSE)
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Output:
[1] FALSE
[1] TRUE
[1] TRUE
[1] TRUE
Example 2:
x1 < - c( 1 , 2 , 3 , 4 )
x2 < - c(T, F, TRUE, FALSE, ! 2 )
x3 < - c( 1 , T, F)
is .logical(x1)
is .logical(x2)
is .logical(x3)
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Output:
[1] FALSE
[1] TRUE
[1] FALSE
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