[R] Replacing values job

[Peter Dalgaard]

Ingmar Visser wrote:
> does this do what you want?
>
> sapply(y,function(y){which(y==x)})
>   
Maybe, but match(Y,X) would be more to the point.

> 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 2�s  
>> 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
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>>
>> Mail: Serguei.Kaniovski at wifo.ac.at
>> http://www.wifo.ac.at/Serguei.Kaniovski
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>>
>> ______________________________________________
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>> 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
>
>
>
> 	[[alternative HTML version deleted]]
>
>   
> ------------------------------------------------------------------------
>
> ______________________________________________
> R-help at 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.
>   


-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
  c/ /'_ --- Dept. of Biostatistics     PO Box 2099, 1014 Cph. K
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