Re: [S] S+ negative eigenvalue from eigen(), not from svd()

Colin Goodall (cgoodall@monmouth.com)
Fri, 01 May 1998 15:19:03 -0400


Re: Tom Burr's questions

To be sure of obtaining non-negative eigenvalues
from this symmetric real non negative-definite matrix, use
eigen(var(x),symmetric=T)

(Thanks to Dan Heitjan for pointing out the need to be more explicit.)
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