Re: JAMA Eigenvectors Inconsistent with those of Matlab
Eigenvectors aren't unique. Those produced by Jama in your example are
scalar multiples of those produced by MATLAB.
At 02:40 PM 7/16/2001 -0400, you wrote:
>Firstly I would like to say what a great tool JAMA is - thanks.
>I'm using the JAMA package as part of of a multivariant data tool. Whilst
>performing some tests on the program, I noticed a difference between the
>eigenvectors given by JAMA and Matlab 5.2 for the following test matrix:
> 1 0 4
> 0 2 0
> 3 1 -3
>The eigenvalues are the same, however, JAMA gave the following eigenvectors:
> 0.8944 -0.5590 -0.5714
> 0 0 1
> 0.4472 0.8385 -0.1429
>whilst Matlab gave these:
> 0.8944 -0.5547 -0.4924
> 0 0 0.8616
> 0.4472 0.8321 -0.1231
>Any thoughts or advise would be welcome.
>Thanking you in advance
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