Dear Andrea,
I've seen this from time to time, but I am not too sure there's been a recent increase in this.
Some of the most striking cases in my own literature searches and reading involve genetic mapping of one coordinate at a time (post-GPA) -
as if each coordinate were a separate trait, which is (IMHO) nonsensical.
This is obviously biased because of my own research interests (i.e., I have seen more in this area because I've read a bit more in this area than in others, not because they are more frequent in genetic mapping than in other areas). But these papers are fairly spread over time and I
didn't catch any particular increase in their frequency as of late.
I understand this does not exactly address what you were asking but I still hope it helps,
Carmelo
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Carmelo Fruciano
Italian National Research Council (CNR)
IRBIM Messina
http://www.fruciano.org/
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Dear All,
I have the impression that studies analyzing one landmark at a time
after a Procrustes superimposition (plus a possible sliding of
semilandmarks) are beginning to pop up here and there in the biological
literature.
I wonder whether there's some revolutionary evidence, which was
published and I missed, that contradicts a most basic principle of
Procrustes shape analysis: never to analyze Procrustes shape variables
one at a time, including especially the case of pairs or triplets of
2D-3D landmark Procrustes shape coordinates. This is nicely summarized
by Paul in J. Anat. (2000) 197, pp. 103–120; exemplified in Fig. 9 of
doi:10.1371/journal.pone.0025630; related to the problem of analyzing
one PW at a time discussed by Jim (Syst. Biol. 47(1):147± 158, 1998);
and most likely known since the early days of Procrustes GMM.
I would be astonished to find that this is not longer true but I am
happy to be surprised.
Many thanks in advance for refs and feedback.
Please, if you reply directly to me, let me know if I can share your
answer.
Cheers
Andrea
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Dr. Andrea Cardini
Researcher, Dipartimento di Scienze Chimiche e Geologiche, Università di
Modena e Reggio Emilia, Via Campi, 103 - 41125 Modena - Italy
tel. 0039 059 4223140
Adjunct Associate Professor, Centre for Forensic Anthropology, The
University of Western Australia, 35 Stirling Highway, Crawley WA 6009,
Australia
E-mail address: [email protected], [email protected]
WEBPAGE: https://sites.google.com/view/alcardini2/
or https://tinyurl.com/andreacardini
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