try this:
s1 <- letters[1:10]
e <- LETTERS[1:10]
q <- c("a","a","c","b","d","d","a","e","b","a")
e[match(q, s1)]
I hope it helps.
Best,
Dimitris
patricia garcía gonzález wrote:
Hi all,
I am trying to create a vector with the information contained in a determined
matrix. Let me explain myself. I have a vector like this:
q <- c("a","a","c","b","d","d","a","e","b","a")
And a matrix like:
s1 <- c("a","b","c","d","e","f","g","h","i","j")
e <- c("A","B","C","D","E","F","G","H","I","J")
s <- cbind( e, s1 )
The matrix s contains the correspondences between vector q and e. And I want a
vector of elements of vector e, but in the order of q. The result should be
like:
q <- c ("a","a","c","b","d","d","a","e","b","a")
res<-c ("A","A","C","B","D","E","A","E","B","A")
So I have to take the elements of vector e and make a matching with elements in
vector q. Any idea?Sorry If I didn't explain myself well.
Thanks
Patricia
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--
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus Medical Center
Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014
______________________________________________
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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.
