RE: Fixed elements within a block covariance matrix

From: Sam Liao Date: January 13, 2004 technical Source: cognigencorp.com
From: Sam Liao - sliao@pharmaxresearch.com Subject: RE: [NMusers] Fixed elements within a block covariance matrix Date: 1/13/2004 8:42 PM Hi Steve, Vicente: I believe what you are saying may hold, but not always. In the case where X11 and X33 are positively correlated, while X22 and X33 are negatively correlated (X3 goes up while X2 goes down), X11 and X22 may not be correlated. This is just my observation in some of the models I had before. Best regards, Sam Liao, Ph.D. PharMax Research 199 Pierce Street, Suite 817, Somerset, NJ 08873 phone: 201-9882043 efax: 1-720-2946783

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Jan 13, 2004 Peter Bonate Fixed elements within a block covariance matrix
Jan 13, 2004 Leonid Gibiansky Re: Fixed elements within a block covariance matrix
Jan 13, 2004 Pascal Girard RE: Fixed elements within a block covariance matrix
Jan 13, 2004 Vladimir Piotrovskij RE: Fixed elements within a block covariance matrix
Jan 13, 2004 Kenneth Kowalski RE: Fixed elements within a block covariance matrix
Jan 13, 2004 Vgcasabo RE: Fixed elements within a block covariance matrix
Jan 13, 2004 Serge Guzy RE: Fixed elements within a block covariance matrix
Jan 13, 2004 Peter Bonate Fixed elements within a block covariance matrix
Jan 13, 2004 Stephen Duffull RE: Fixed elements within a block covariance matrix
Jan 13, 2004 Sam Liao RE: Fixed elements within a block covariance matrix
Jan 13, 2004 Serge Guzy RE: Fixed elements within a block covariance matrix
Jan 14, 2004 Vgcasabo RE: Fixed elements within a block covariance matrix
Jan 14, 2004 Jakob Ribbing RE: Fixed elements within a block covariance matrix
Jan 14, 2004 Leonid Gibiansky Re: Fixed elements within a block covariance matrix
Jan 14, 2004 Qi Liu Re: Fixed elements within a block covariance matrix
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