How do I run a function without providing optional parameter

Asked Feb 21 '18 at 19:36

Active Feb 21 '18 at 19:36

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Suppose, I have a function called myfunction. How do I complete this function where if test2 is provided, I want to print "test2 is provided", if not, do nothing. I want to run the below function like myfunction(test1) without using test2 (an optional parameter).

myfunction <- function (test1, test2){

do something...

if exists(test2){ print("test2 is provided")}

}

asked Feb 21 '18 at 19:36

MAPK

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It gives alternative command to print "a" in the answer you mentioned, but I want to do nothing for a command associated with that parameter if not provided. – MAPK Feb 21 '18 at 19:46
1

use `!missing()` rather than `exists()`. – MrFlick Feb 21 '18 at 19:50
Re-read the accepted answer. – BadZen Feb 21 '18 at 19:51

How do I run a function without providing optional parameter

0 Answers0