This is all very intriguing. Normally when piping into an operator
function, R throws "Error: function '+' not supported in RHS call of a
pipe":
> 1 |> `+`(2)
Error: function '+' not supported in RHS call of a pipe
This is a different error from the above "invalid use of pipe placeholder",
which
A few years ago there was a post by the author of pipeR suggesting improvements
in efficiency and reliability. Is there collaboration between these various
pipe projects?
Sent from my iPhone
> On Apr 21, 2023, at 1:01 PM, Duncan Murdoch wrote:
>
> On 21/04/2023 12:16 p.m., Michael Milton wro
On 21/04/2023 12:16 p.m., Michael Milton wrote:
I'm afraid I don't understand. I know that parsing `+`(1, 1) returns a
result equivalent to `1 + 1`, but why does that impose a restriction on
parsing the pipe operator? What is the downside of allowing arbitrary
RHS functions?
I thought the dec
I'm afraid I don't understand. I know that parsing `+`(1, 1) returns a
result equivalent to `1 + 1`, but why does that impose a restriction on
parsing the pipe operator? What is the downside of allowing arbitrary RHS
functions?
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On 21/04/2023 11:33 a.m., Michael Milton wrote:
Thanks, this makes sense. Is there a similar precedence reasoning behind
why operator functions (`+` etc) can't be piped into?
Yes:
> identical(quote(1 + 1), quote(`+`(1, 1)))
[1] TRUE
Duncan Murdoch
Thanks, this makes sense. Is there a similar precedence reasoning behind
why operator functions (`+` etc) can't be piped into?
On Fri, Apr 21, 2023 at 11:52 PM Duncan Murdoch
wrote:
> On 21/04/2023 4:35 a.m., Michael Milton wrote:
> > I just checked out R-devel and noticed that the new "pipe ext
On 21/04/2023 4:35 a.m., Michael Milton wrote:
I just checked out R-devel and noticed that the new "pipe extractor"
capability coming in 4.3 only works for the 4 extractor operators, but no
other standard operators like +, *, %*% etc, meaning that e.g. mtcars |>
as.matrix() |> _ + 1 |> colMeans()
I just checked out R-devel and noticed that the new "pipe extractor"
capability coming in 4.3 only works for the 4 extractor operators, but no
other standard operators like +, *, %*% etc, meaning that e.g. mtcars |>
as.matrix() |> _ + 1 |> colMeans() is a syntax error. In addition, we are
still sub
