I tried this again with R 2.15.3, the oldest version I have installed,
and I still got the same behaviour. It extracts the first exact match,
then the only partial match, then NULL.
On Tue, Jan 24, 2023 at 5:04 PM Rolf Turner <r.tur...@auckland.ac.nz> wrote:
>
>
> Has something changed, but I missed it?
>
> My recollection is that $ extraction used partial matching.
>
> E.g. if one did
>
> junk <- list(yuck=1,yurk=2,y=3)
> junk$y
>
> then one would get 1 as the result; probably *not* the desired result.
> See fortunes::fortune("toad").
>
> To get the desired result, one would need to use junk[["y"]].
>
> Likewise junk$yu would give 1; to get the value of "yurk", one would
> need to use junk$yur or junk$yurk or (better?) junk[["yurk"]].
>
> However, either my recollection is wrong, or something has changed.
> When I do junk$y I get 3 (the "right" answer; the same as junk[["y"]]).
> When I do junk$yu I get NULL (just as if I'd done junk[["yu"]]).
>
> So: has something changed, or am I miss-remembering, or am I completely
> confused about the whole issue?
>
> Thanks for any enlightenment.
>
> cheers,
>
> Rolf Turner
>
> --
> Honorary Research Fellow
> Department of Statistics
> University of Auckland
> Phone: +64-9-373-7599 ext. 88276
>
> ______________________________________________
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
