AMBER Archive (2009)

Subject: Re: [AMBER] how much % of the total protein motion are described by the first eigenvector?

From: Hannes Loeffler (hannes.loeffler_at_stfc.ac.uk)
Date: Wed Aug 26 2009 - 04:41:31 CDT

On Wed, 2009-08-26 at 17:05 +0800, Catein Catherine wrote:
> How can I found how much % of the total protein motion are described by the first eigenvector after I did the PCA analysis?

By comparing the eigenvalue of the chosen eigenvector to the sum of all
eigenvalues or alternatively to the sum of the diagonal elements of the
variance-covariance matrix.

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