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

[Jeff Newmiller]

Why should 6,5 be more correct than 5,6? How is R supposed to reach that conclusion based on comparing values?


On January 30, 2022 1:16:44 AM PST, Stefan Fleck <stefan.b.fleck using gmail.com> wrote:
>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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-- 
Sent from my phone. Please excuse my brevity.