[Rd] paste(character(0), collapse="", recycle0=FALSE) should be ""

[Hervé Pagès]

On 5/22/20 18:12, brodie gaslam wrote:
> 
> FWIW what convinces me is consistency with other aggregating functions applied
> to zero length inputs:
> 
> sum(numeric(0))
> ## [1] 0

Right.

And 1 is the identity element of multiplication:

 > prod(numeric(0))
[1] 1

And the empty string is the identity element of string aggregation by 
concatenation.

H.