eigenvalue/eigenvector calculations

Paul Gilbert pgilbert@bank-banque-canada.ca
Tue, 20 Apr 1999 13:44:59 -0400

> was cross-checking my results in R and came up with the following
>peculiar behaviour.  If you use only.values = TRUE in eigen, you get
>noticeably different eigenvalues and I don't think it is just a matter

This might be related to the problem (bad values from eigen) I reported a couple
of weeks ago. I think it was tracked down to a problem in the header files. As I
understand it, the bug has been around for awhile,  but may not always bite -
unless you're using a snapshot where it might be fixed. (I've reverted to 0.63.3
as it didn't seem to cause me a problem there.)

Paul Gilbert

r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-devel-request@stat.math.ethz.ch