does this do what you want?
sapply(y,function(y){which(y==x)})
hth, Ingmar
On 28 Nov 2007, at 15:53, Serguei Kaniovski wrote:
>
> Hallo,
>
> I have two vectors of different lengths which contain the same set of
> values:
>
> X < -c(2,6,1,7,4,3,5)
> Y <- c(1,1,6,4,6,1,4,1,2,3,6,6,1,2,4,4,5,4,1,7,6,6,4,4,7,1,2)
>
> How can I replace the values in Y with the index (!) of the
> corresponding
> values in X. So 2 appears in X in the first coordinate, so all 2s
> in Y
> should be replaced by 1, etc.
>
> Thank you for your help,
> Serguei
>
> ________________________________________
> Austrian Institute of Economic Research (WIFO)
>
> P.O.Box 91 Tel.: +43-1-7982601-231
> 1103 Vienna, Austria Fax: +43-1-7989386
>
> Mail: [EMAIL PROTECTED]
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>
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> and provide commented, minimal, self-contained, reproducible code.
Ingmar Visser
Department of Psychology, University of Amsterdam
Roetersstraat 15
1018 WB Amsterdam
The Netherlands
t: +31-20-5256723
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