Check if a value or a logical expression is TRUE in R Programming – isTRUE() Function
isTRUE()
function in R Language is used to check whether a value or a logical expression is true or not.
Syntax: isTRUE(x)
Parameters:
x: logical or number-like vector
Example 1:
# R Program to test whether # an expression is TRUE # Calling isTRUE() Function isTRUE( 1 ) isTRUE( 1 > 0 ) isTRUE( "a" ) |
Output:
[1] FALSE [1] TRUE [1] FALSE
Example 2:
# R Program to test whether # an expression is TRUE # Creating vectors x < - c( 1 , 2 ) y < - c( 4 , 5 , 6 , 7 ) # Calling isTRUE() Function isTRUE(x < y) isTRUE(x && y) isTRUE(x || y) |
Output:
[1] FALSE [1] TRUE [1] TRUE