Re: [Rd] arithmetic with zero-column data.frames

2017-08-09 Thread Martin Maechler
So as often there is more to it than you first think. Let's consider this an RFC (for experienced long time R users) : > Martin Maechler > on Wed, 9 Aug 2017 10:45:56 +0200 writes: > William Dunlap via R-devel > on Tue, 8 Aug 2017 11:59:45 -0700 writes: >> Should ar

Re: [Rd] Problems with S4 methods dispatching on `...` (aka dotsMethods)

2017-08-09 Thread Andrzej Oleś
Awesome, thank you Michael! On Mon, Aug 7, 2017 at 7:27 PM, Michael Lawrence wrote: > I ported that over. > > On Tue, Aug 1, 2017 at 5:50 AM, Andrzej Oleś > wrote: > >> Thank you Michael for updating the 3.4 branch, the `callNextMethod()` now >> works for `...` methods as expected. However, I'm

Re: [Rd] arithmetic with zero-column data.frames

2017-08-09 Thread Martin Maechler
> William Dunlap via R-devel > on Tue, 8 Aug 2017 11:59:45 -0700 writes: > Should arithmetic operations work on zero-column data.frames (returning a > zero-column data.frame with the same number of rows as the data.frame > argument(s))? Currently we get: >> 1 + data