Talk:Procrustes analysis

Procrustes
I have access to a book that says the source of the word "Procrustes" is that he was a "...robber who kidnapped travelers and made them fit his bed either by stretching their limbs or cutting them off." This article should mention that. —Ben FrantzDale (talk) 00:25, 13 January 2008 (UTC)

naming (x,y); (u,v); (w,v)??
I am a little confused (but not an expert). In computing the angle betweeen objects the text says "let the points of these be ((x_1,y_1),\ldots), ((w_1,z_1),\ldots)" but in the final formula for the angle (u,v) is used. Seems more logical to start with objects (u,v) and (w,z), call the rotatated version of one of these ((x,y) etc.

Hope this is helpfull —Preceding unsigned comment added by 212.182.149.184 (talk) 12:48, 18 May 2010 (UTC)

Merging with Generalized Procrustes analysis (GPA)
As there are many non-GPA procrustes analyses, like Planar Procrustes Analysis or Ordinary Procrustes Analysis, and because GPA is often used for purposes other than shape testing [it was designed for Free Choice Profiling, as in psychometrics and sensometrics, etc] I would not merge these sections. —Preceding unsigned comment added by 148.128.243.8 (talk) 19:48, 21 October 2008 (UTC)


 * I believe this article should discuss all kinds of Procrustes analysis. Since the article about GPA is almost a stub, it should be merged with this one, taking into account the information given in the previous anonymous posting. Paolo.dL (talk) 09:15, 3 February 2011 (UTC)


 * Since nobody supported my suggestion, I added into this article a section about GPA, with a link to GPA, and removed the "merge" tag. Paolo.dL (talk) 14:10, 11 February 2011 (UTC)