Re: [R] sorting matrix for rownames

From: talepanda <talepanda_at_gmail.com>
Date: Mon, 07 Apr 2008 18:54:05 +0900

Did you mean:
 > x<-matrix(runif(16),4,4,dimnames=list(sample(letters[1:4]),NULL))  > x

        [,1] [,2] [,3] [,4]

a 0.5132191 0.09121766 0.9470733 0.6311042
d 0.3621340 0.43193846 0.8536142 0.9286477
c 0.8597558 0.48168800 0.2845544 0.4108180
b 0.4767520 0.72526768 0.2105142 0.6678300
 > x[order(rownames(x)),]
        [,1]       [,2]      [,3]      [,4]
a 0.5132191 0.09121766 0.9470733 0.6311042
b 0.4767520 0.72526768 0.2105142 0.6678300
c 0.8597558 0.48168800 0.2845544 0.4108180 d 0.3621340 0.43193846 0.8536142 0.9286477

> hi members,
>
> i tried to sort my whole matrix X for its rownames. the rownames are
> unsorted id numbers:
>
> i tried it with sort(rownames(X)) or order(rownames(X)) but then i get
> only a vector of the rownames:(...
>
> any suggestions?
>
> thanks
> paul
>
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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. Received on Mon 07 Apr 2008 - 10:03:03 GMT

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