[R] How to find the index

Henrik Bengtsson hb at stat.berkeley.edu
Tue Sep 16 17:14:49 CEST 2008


See ?order, ?sort, and possibly match().   Pay attention to the
arguments provided.  /Henrik

On Tue, Sep 16, 2008 at 8:04 AM, Peng Jiang <jp021 at sjtu.edu.cn> wrote:
>  Dear R experts,
>
>  i have a vector z , i have to do something after z is sorted. how can i
> find the original index, i.e., before sorting, of a certain element in the
> sorted vector  .
>  thanks in advance
>
>  regards
> -----------------------------------------------
> Peng Jiang 江鹏 ,Ph.D. Candidate
> Antai College of Economics & Management
> 安泰经济管理学院
> Department of Mathematics
> 数学系
> Shanghai Jiaotong University (Minhang Campus)
> 800 Dongchuan Road
> 200240 Shanghai
> P. R. China
>
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