[R] find the permutation function of a sorting

[John]

Thanks, David.
I got the answer from the web.
Is there any easy way to permute a set (e.g., a set of characters) by the
permutation it returns? Thanks,


> x <- c(10,7,4,3,8,2)
> sort(x, index.return=TRUE)
$x
[1]  2  3  4  7  8 10

$ix
[1] 6 4 3 2 5 1

2018-05-23 10:49 GMT+08:00 David Winsemius <dwinsemius using comcast.net>:

>
>
> > On May 22, 2018, at 10:06 PM, John <miaojpm using gmail.com> wrote:
> >
> > Hi,
> >
> >   Is there any way to find the permutation function of the sorting and to
> > apply the function (or its inverse) elsewhere?
> >
> >   For example, the following permutation function from the sorting in the
> > matrix form is
> > c(1,2,3), c(2,1,3)
> >
> >> sort(c("bc","ac","dd"))
> > [1] "ac" "bc" "dd"
> >
>
> I think you are asking for the `order` function.
>
> >   I try to find it in the permutations/permute package, but I can't find
> it
> >
> > John
> >
> >       [[alternative HTML version deleted]]
>
>

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