How about
qr(A)$rank
or perhaps
qr(A, LAPACK=TRUE)$rank
Cheers,
Andy
__________________________________
Andy Jaworski
518-1-01
Process Laboratory
3M Corporate Research Laboratory
-----
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Tel: (651) 733-6092
Fax: (651) 736-3122
"José Luis
Aznarte M."
<[EMAIL PROTECTED] To
.ugr.es> [email protected]
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at.math.ethz.ch Subject
[R] Computing the rank of a matrix.
04/06/2007 06:39
AM
Hi! Maybe this is a silly question, but I need the column rank
(http://en.wikipedia.org/wiki/Rank_matrix) of a matrix and R function
'rank()' only gives me the ordering of the elements of my matrix.
How can I compute the column rank of a matrix? Is there not an R
equivalent to Matlab's 'rank()'?
I've been browsing for a time now and I can't find anything, so any
help will be greatly appreciated. Best regards!
-- --
Jose Luis Aznarte M. http://decsai.ugr.es/~jlaznarte
Department of Computer Science and Artificial Intelligence
Universidad de Granada Tel. +34 - 958 - 24 04 67
GRANADA (Spain) Fax: +34 - 958 - 24 00 79
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