is.primitive()
function in R Language is used to check if a function is a primitive function, i.e. its either a built-in function or a special function.
Syntax: is.primitive(func)
Parameters:
func: Function to be checked
Example 1:
# R program to illustrate # the use of is.primitive function # Calling is.primitive() function is .primitive( 1 )
is .primitive( is .primitive)
is .primitive( sum )
is .primitive(prod)
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Output:
[1] FALSE [1] FALSE [1] TRUE [1] TRUE
Example 2:
# R program to illustrate # the use of is.primitive function # Sample user-defined Function evenOdd = function(x){
if (x % % 2 = = 0 )
return ( "even" )
else
return ( "odd" )
} # Calling is.primitive() function is .primitive(evenOdd)
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Output:
[1] FALSE
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