[SC-MorphLab] Size Scaling in GPSA Method

[Alex Townsend]

Hello,

  I apologize for the delay.  This mailing list is no longer regularly checked or maintained since the passing of Dr. Dennis E Slice in 2019.  I am not certain if Dr. Pomidor even still recieves messages from this list as he is no longer at FSU as far as I am aware.

  Your best bet would probably be to contact the MorphMet mailing list to ask about this:
- https://groups.google.com/g/morphmet2/about

  I believe Dr. Pomidor is currently at USC so you may want to check there for an email address as well.

Sincerely,
Alex Townsend

On Dec 30, 2023, at 11:18 PM, Bob Cieri via SC-MorphLab <sc-morphlab at lists.fsu.edu> wrote:


Hi -

Just pinging you again here - could you give us a quick answer regarding size scaling in your PCSA software?
Thanks very much

Bob Cieri

On Thu, Nov 30, 2023 at 6:43 PM Bob Cieri <bob.cieri at gmail.com<mailto:bob.cieri at gmail.com>> wrote:
Dear Dr. Pomidor,

I'm in the final stages of using your GPSA software (thanks for sharing) to examine differences in bone and muscle shapes. It's great stuff! I have one question though. From your 2016 PLoS paper, it is not clear if the procrustes analog in the GPSA method accounts for size differences. If I use the software as presented in your website, will the method control for size, or do I need to control for size (by say dividing by centroid size) outside of the GPSA software?

Thanks,

Bob Cieri

--
Robert (Bob) L. Cieri
NSF Postdoctoral Fellow
Department of Zoology
University of British Columbia
cieri at zoology.ubc.ca<mailto:cieri at zoology.ubc.ca>
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Bob Cieri
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