What is going on here? In the lines ending in the inputs and outputs
are identical yet one gives a warning and the other does not.
a1 <- `rownames<-`(anscombe[1:3, ], NULL)
a2 <- anscombe[1:3, ]
ix <- 5:8
# input arguments to are identical in both cases
identical(stack(a1[ix]), sta
They differ in whether the row names are "automatic":
> .row_names_info(a1)
[1] -3
> .row_names_info(a2)
[1] 3
Best,
-Deepayan
On Tue, 14 Nov 2023 at 08:23, Gabor Grothendieck
wrote:
>
> What is going on here? In the lines ending in the inputs and outputs
> are identical yet one gives a w
In that case identical should be FALSE but it is TRUE
identical(a1, a2)
## [1] TRUE
On Tue, Nov 14, 2023 at 8:58 AM Deepayan Sarkar
wrote:
>
> They differ in whether the row names are "automatic":
>
> > .row_names_info(a1)
> [1] -3
> > .row_names_info(a2)
> [1] 3
>
> Best,
> -Deepayan
>
> On T
Also why should that difference result in different behavior?
On Tue, Nov 14, 2023 at 9:38 AM Gabor Grothendieck
wrote:
>
> In that case identical should be FALSE but it is TRUE
>
> identical(a1, a2)
> ## [1] TRUE
>
>
> On Tue, Nov 14, 2023 at 8:58 AM Deepayan Sarkar
> wrote:
> >
> > They diffe
On Tue, 14 Nov 2023 at 09:41, Gabor Grothendieck
wrote:
>
> Also why should that difference result in different behavior?
That's justifiable, I think; consider:
> d1 = data.frame(a = 1:4)
> d2 = d3 = data.frame(b = 1:2)
> row.names(d3) = c("a", "b")
> data.frame(d1, d2)
a b
1 1 1
2 2 2
3 3 1
4
Seems like a leaky abstraction. If both representations are supposed
to be outwardly the same to the user then they should act the same and
if not then identical should not be TRUE.
On Tue, Nov 14, 2023 at 9:56 AM Deepayan Sarkar
wrote:
>
> On Tue, 14 Nov 2023 at 09:41, Gabor Grothendieck
> wro
On Mon, Nov 13, 2023 at 12:45 PM Avraham Adler wrote:
>
> On Mon, Nov 13, 2023 at 1:13 AM Dirk Eddelbuettel wrote:
> >
> >
> > Avi,
> >
> > Might be toolchain-dependent, might be options-dependent--it built fine
> > here.
> > Easier for you to vary option two so maybe try that?
> >
> > Dirk
>
>
On 11/14/23 19:19, Joshua Ulrich wrote:
On Mon, Nov 13, 2023 at 12:45 PM Avraham Adler wrote:
On Mon, Nov 13, 2023 at 1:13 AM Dirk Eddelbuettel wrote:
Avi,
Might be toolchain-dependent, might be options-dependent--it built fine here.
Easier for you to vary option two so maybe try that?
D
