[The following was submitted by Dr. Fred L. Bookstein in response to the
query posted by Dr. Thomas M. Greiner. It follows with some requested
editing and reformatting by me. -the morphmet moderator (dslice)]
Procrustes distance is one of a large family of occasionally reasonable
measures that per
Dear Prof. Greiner,
I leave answers to your interesting questions to statisticians.
I have a certainly simplistic view of the tangent space projection. The
way I see it is just as a way to have data in an Euclidean space where
standard statistics can be performed. Most of the time this is perfect
I would like to clarify a few points.
There is no 'shape space projection'. Shapes are points in Kendall's
shape space. As Thomas points out it is a curved space. Standard
multivariate analyses assume linear spaces so one usually tries to
approximate shape space by mapping from shape space to a li
If you have saved the consensus configuration from the prior GPA, then all
you need to do is to align the new specimen with that consensus
configuration.
---
F. James Rohlf, Distinguished Professor
State University of New York, Stony Brook, NY 11794-5245
www: http://life.bio.su
