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Re: [shapeworks-users] Shapeworks


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  • From: Alan Morris <alan.morris@utah.edu>
  • To: "Barnet, Isabel" <ibarnet@hms.harvard.edu>, "Beroukhim, Rebecca" <Rebecca.Beroukhim@cardio.chboston.org>
  • Cc: Shireen Youssef Elhabian <shireen@sci.utah.edu>, "shapeworks-users@sci.utah.edu" <shapeworks-users@sci.utah.edu>, Alan Morris <amorris@sci.utah.edu>
  • Subject: Re: [shapeworks-users] Shapeworks
  • Date: Tue, 25 Jun 2024 15:53:00 +0000
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Hi,

 

The first mode of variation is the mode that explains the most variance within the model.  It does not have to be absolute size, it depends on the dataset.  In datasets where there are variations in total size/volume, we very often find that variation as the largest component of the first mode of variation.

 

Thanks,

Alan

 

 

From: Barnet, Isabel <ibarnet@hms.harvard.edu>
Date: Tuesday, June 25, 2024 at 9:30 AM
To: Beroukhim, Rebecca <Rebecca.Beroukhim@cardio.chboston.org>
Cc: Shireen Youssef Elhabian <shireen@sci.utah.edu>, shapeworks-users@sci.utah.edu <shapeworks-users@sci.utah.edu>, Alan Morris <amorris@sci.utah.edu>
Subject: Re: Shapeworks



Hi all!

 

As a quick addendum to this question, does p0 have a special significance (ie does it always represent the absolute size/volume of a shape in a model), or does it merely represent the mode explaining the most variance? 

 

Thanks!

Isabel 



On Jun 25, 2024, at 10:49 AM, Beroukhim, Rebecca <Rebecca.Beroukhim@cardio.chboston.org> wrote:



Hi Shireen and Alan,

 

Can you please clarify what output P0 represents? Does P0 reflect absolute volume of the shape?

 

Thank you,

Rebecca S. Beroukhim MD |Department of Cardiology | Boston Children’s Hospital | 300 Longwood Avenue | Boston, MA 02115 | Phone 617-355-4521 |Fax 617-730-4791 | rebecca.beroukhim@cardio.chboston.org

 

Boston Children’s Hospital recommends that all patient communication is through the hospital portal:

Boston Children’s Hospital MyChildrens: https://apps.childrenshospital.org/mychildrens/index.html

<PCA_scores_A_11-6.csv>


  • Re: [shapeworks-users] Shapeworks, Alan Morris, 06/25/2024

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