[R] [External] Weird behaviour of order() when having multiple ties

[Martin Maechler]

>>>>> Stefan Fleck 
>>>>>     on Sun, 30 Jan 2022 21:07:19 +0100 writes:

    > it's not about the sort order of the ties, shouldn't all the 1s in
    > order(c(2,3,4,1,1,1,1,1)) come before 2,3,4? because that's not what
    > happening

aaah.. now we are getting somewhere:
It looks you have always confused order() with sort() ...
have you ?


    > On Sun, Jan 30, 2022 at 9:00 PM Richard M. Heiberger <rmh using temple.edu> wrote:

    >> when there are ties it doesn't matter which is first.
    >> in a situation where it does matter, you will need a tiebreaker column.
    >> ------------------------------
    >> *From:* R-help <r-help-bounces using r-project.org> on behalf of Stefan Fleck <
    >> stefan.b.fleck using gmail.com>
    >> *Sent:* Sunday, January 30, 2022 4:16:44 AM
    >> *To:* r-help using r-project.org <r-help using r-project.org>
    >> *Subject:* [External] [R] Weird behaviour of order() when having multiple
    >> ties
    >> 
    >> I am experiencing a weird behavior of `order()` for numeric vectors. I
    >> tested on 3.6.2 and 4.1.2 for windows and R 4.0.2 on ubuntu. Can anyone
    >> confirm?
    >> 
    >> order(
    >> c(
    >> 0.6,
    >> 0.5,
    >> 0.3,
    >> 0.2,
    >> 0.1,
    >> 0.1
    >> )
    >> )
    >> ## Result [should be in order]
    >> [1] 5 6 4 3 2 1
    >> 
    >> The sort order is obviously wrong. This only occurs if i have multiple
    >> ties. The problem does _not_ occur for decreasing = TRUE.
    >> 
    >> [[alternative HTML version deleted]]
    >> 
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    > [[alternative HTML version deleted]]

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