How to use `warning()` in an Reference Class method?

Question

warning() seems to be ignored in reference class methods, although stop() seems to work. That is,

TestA <- setRefClass("TestA", 
                methods = list(
                    warnMe = function() warning("Warn!!!"),
                    stopMe = function() stop("Stop!!!")
                )
            )
obj <- TestA()

obj$warnMe()
obj$stopMe()

yields only:

Error in obj$stopMe() : Stop!!!

Is this intentional and if so, why? How am I supposed to raise warnings inside class methods?

Ahh, yes that did the trick -- my bad. I don't know how it got switched off though - I've never touched this option... You can post this as the solution and I'll accept. — mchen, Jan 16 '14 at 16:55

mchen · Accepted Answer · 2014-01-17T07:15:17.963

0

Make sure warnings are turned on options(warn=1). – Matthew Plourde

edited Jan 17 '14 at 07:15

answered Jan 16 '14 at 16:53

mchen

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How to use `warning()` in an Reference Class method?

1 Answers1