Re: GPA possible based on subset of landmarks?

morphmet Mon, 27 Feb 2012 11:42:22 -0800


-------- Original Message --------
Subject:        Re: GPA possible based on subset of landmarks?
Date:   Mon, 27 Feb 2012 14:01:57 -0500
From:   annat haber <anna...@gmail.com>
To:     morphmet@morphometrics.org



Ah, there you go. Sorry, didn't see it before. Thanks, Dennis.
Out of curiosity, How do you incorporate the size scaling? Do you
size-scale the complete configuration based on the centroid size of the
subset?
Thanks
Annat

On Mon, Feb 27, 2012 at 8:43 PM, morphmet
<morphmet_modera...@morphometrics.org
<mailto:morphmet_modera...@morphometrics.org>> wrote:



    -------- Original Message --------
    Subject: Re: GPA possible based on subset of landmarks?
    Date: Mon, 27 Feb 2012 13:40:04 -0500
    From: Dennis E. Slice <dsl...@morphometrics.org
    <mailto:dsl...@morphometrics.org>>
    To: morphmet@morphometrics.org <mailto:morphmet@morphometrics.org>

    All of my programs since (at least) GRF-ND have done this, the latest

being the alph test version of Morpheus and the earlier windowsversion.

    The programs support two landmark attributes - primary/secondary.
    Primary points are used in the calculation, secondary points are just
    carried along.

    This is much simpler in the newer (alpha) version:

    DEMOTE POINT i OBJECT *
    PROMOTE POINT i OBJECT *
    LIST POINTREPORT

    Hmm, I need to update the alpha version (and call it beta) as my own
    version has lots of new features including OPA/GPA superimposition (no
    missing data), user-defined variables, batch processing, etc.

    -ds


    On 2/27/12 12:21 PM, morphmet wrote:



        -------- Original Message --------
        Subject: GPA possible based on subset of landmarks?
        Date: Thu, 16 Feb 2012 18:36:59 -0500
        From: Dominique Adriaens <dominique.adria...@ugent.be
        <mailto:dominique.adria...@ugent.be>>

To: <morphmet@morphometrics.org<mailto:morphmet@morphometrics.org>>




        Dear all,

Does anyone know how it would be possible to perform GPA on aset of

        landmark configurations, where the actual GPA is performed based
        on a
        subset of landmarks in the configurations but where the other
        landmarks
        are modified accordingly (but are not involved in the GPA
        itself). We

want to combine different sets of digitised landmarkconfigurations,

        being a set of landmarks on bony elements (which comprise a
        subset of
        landmarks shared in all configurations) and different sets of
        landmarks
        on muscles (a sequence of images are used, where muscles are
        subsequently peeled off). The final goal is then to pool all the
        muscle
        landmarks with that shared set of bony landmarks into one
        dataset, after
        they have been superimposed based on the coordinates of the
        shared ‘bony
        landmarks’.

        Any suggestion would be welcome!

        Thanks and best regards

        Dominique

        *Prof. Dr. Dominique Adriaens*

        Ghent University

        Evolutionary Morphology of Vertebrates & Zoology Museum

        K.L. Ledeganckstraat 35, B-9000 Gent

        BELGIUM

        tel: +32 9 264.52.19 <tel:%2B32%209%20264.52.19>, fax: +32 9
        264.53.44 <tel:%2B32%209%20264.53.44>

        E-mail: dominique.adria...@ugent.be

<outbind://5-__000000002B873A8E03CAD411AE9E00__5004995AACC4103900/dominique.__adria...@rug.ac.be
        <mailto:dominique.adria...@rug.ac.be>>


        URL: http://www.fun-morph.ugent.be/

        http://www.zoologymuseum.__ugent.be/
        <http://www.zoologymuseum.ugent.be/>

        http://www.evolutietheorie.be/

        Logo labo klein



    --
    Dennis E. Slice
    Associate Professor
    Dept. of Scientific Computing
    Florida State University
    Dirac Science Library
    Tallahassee, FL 32306-4120
            -
    Guest Professor
    Department of Anthropology
    University of Vienna
            -
    Software worth having/learning/using...
      Linux (Operating System: Ubuntu, CentOS, openSUSE, etc.)
      OpenOffice (Office Suite: http://www.openoffice.org/)
      R package (Stats/Graphics environment: http://www.r-project.org/)
      Eclipse (Java/C++/etc IDE: http://www.eclipse.org/)
      Netbeans (Java/C++/etc IDE: http://netbeans.org/)
      Zotero (FireFox bibliographic extension: http://www.zotero.org/)
    ==============================__==========================





--
Annat Haber, PhD
Postdoc fellow
Tel-Aviv University
Department of Zoology
Tel Aviv 69978, Israel

c: +972 50 2517 901
http://home.uchicago.edu/~annat/ <http://home.uchicago.edu/%7Eannat/>

Re: GPA possible based on subset of landmarks?

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