See ?order, ?sort, and possibly match(). Pay attention to the arguments provided. /Henrik
On Tue, Sep 16, 2008 at 8:04 AM, Peng Jiang <[EMAIL PROTECTED]> 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 > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
