Or perhaps it is the idea of "different" that is broken.
If you are doing the same problem, then the eigenvalues should be equal in the two systems -- up to numerical error. If that is true, then the eigenvectors for each distinct eigenvalue need to span the same space. Thus the eigenvectors can always have opposite signs, and for eigenvalues that are multiple the eigenvectors need look nothing alike. Patrick Burns [EMAIL PROTECTED] +44 (0)20 8525 0696 http://www.burns-stat.com (home of S Poetry and "A Guide for the Unwilling S User") [EMAIL PROTECTED] wrote:
Simple. Minitab must be broken. Have you reported it to them? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of SH.Chou Sent: Friday, 18 July 2008 5:24 PM To: r-help@r-project.org Subject: [R] function "eigen" AND Minitab Hi all. I got a question about eigenvector. I've tried input a symmetric matrix to both R (using eigen function) and minitab, but the result is really different. Can anyone tell me what's wrong with that? Thanks. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list 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. ______________________________________________ R-help@r-project.org mailing list 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.
______________________________________________ R-help@r-project.org mailing list 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.
