How to find the index
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 ?? ,Ph.D. Candidate Antai College of Economics & Management ???????? Department of Mathematics ??? Shanghai Jiaotong University (Minhang Campus) 800 Dongchuan Road 200240 Shanghai P. R. China
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