-------- Original Message --------
Subject: MorphoJ update
Date: Sat, 21 Jun 2008 13:14:49 -0700 (PDT)
From: Chris Klingenberg <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Organization: University of Manchester
To: [email protected]
I have just posted an updated version (1.00b) of MorphoJ on the web site
(http://www.flywings.org.uk/MorphoJ_page.htm).
The update rectifies a couple of bugs in the Procrustes ANOVA.
The first bug concerned the output only, but not the results of the
analysis. If a 'Side' effect is specified or if the data have object
symmetry, the vector of directional asymmetry (average asymmetry) is now
printed to the Results window.
The second bug concerned the covariance matrix for the Individual effect
that is produced as an output of the Procrustes ANOVA, under particular
circumstances (no Error 1 or Error 2 effect, but multiple repeat
measurements included as residual effect). The problem was that
divisions by zero could occur in the computations of covariances, which
led to failures of subsequent analyses such as PCA, matrix correlation
etc. These problems were obvious (e.g. an output "NaN" for the matrix
correlation or complete failure of the procedure for PCA).
If you have any Procrustes ANOVAs and want to abe absolutely safe,
remove the Procrustes ANOVAs from your existing projects (invoke the
popup menu in the project tree window, then select 'Remove Item') and
then redo them.
Best wishes,
Chris
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Christian Peter Klingenberg
Faculty of Life Sciences
The University of Manchester
Michael Smith Building
Oxford Road
Manchester M13 9PT
United Kingdom
Telephone: +44 161 275 3899
Fax: +44 161 275 5082
E-mail: [EMAIL PROTECTED]
Web: http://www.flywings.org.uk
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