[Rd] round() ignores missing arguments if it is used inside another function where some arguments are missing.

Kevin R. Coombes kevin.r.coombes at gmail.com
Fri Nov 18 18:34:56 CET 2011

You can also see the odd behavior without wrapping round in another 

 > round(100.1, digits=)
[1] 100

On 11/18/2011 10:19 AM, Joris Meys wrote:
> On Fri, Nov 18, 2011 at 5:10 PM, Gavin Simpson<gavin.simpson at ucl.ac.uk>  wrote:
>> round is indicated to not evaluate its arguments. I don't follow the C
>> code well enough to know if it should be catching the missing argument
>> further on - it must be because it is falling back to the default, but
>> the above explains that the not evaluating arguments is intended.
>> G
> So if I understand it right, the y argument is not evaluated in the
> fun2 function but deeper in the C code. that explains the lack of the
> error message, thanks! I keep on learning every day.
> Cheers
> Joris

More information about the R-devel mailing list