Uwe Ligges wrote:
onyourmark wrote:
Hi. I have a 925 by 925 correlation matrix corM. I want to identify all
variables that have correlation greater than 0.9. Can anyone suggest
an "R
way" of doing this?
Thank you.
Example:
# prepare example data:
x <- matrix((1:25) / 25, 5, 5)
rownames(x) <- letters[1:5]
colnames(x) <- letters[1:5]
# solution
cbind(rownames(x)[row(x)[x > 0.9]], colnames(x)[col(x)[x > 0.9]])
or even
which(x > 0.9, arr.ind = TRUE)
Best,
Dimitris
Uwe Ligges
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--
Dimitris Rizopoulos
Assistant Professor
Department of Biostatistics
Erasmus University Medical Center
Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands
Tel: +31/(0)10/7043478
Fax: +31/(0)10/7043014
______________________________________________
R-help@r-project.org mailing list
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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.
