-------- Original Message -------- Subject: RE: Slide method and RWs Date: Tue, 8 Sep 2009 10:20:39 -0700 (PDT) From: F. James Rohlf <[email protected]> Reply-To: <[email protected]> Organization: Stony Brook University To: <[email protected]> References: <[email protected]> That should be considered 'normal'. The tpsRelw program does not (yet) eliminate the last few dimensions that correspond to variation along the curves that should, in principle, have been eliminated by the sliding process. ========================= F. James Rohlf Distinguished Professor, Stony Brook University http://life.bio.sunysb.edu/ee/rohlf
-----Original Message----- From: morphmet [mailto:[email protected]] Sent: Tuesday, September 08, 2009 11:26 AM To: morphmet Subject: Slide method and RWs -------- Original Message -------- Subject: Slide method and RWs Date: Tue, 8 Sep 2009 07:29:48 -0700 (PDT) From: Teresa Militão <[email protected]> To: [email protected] Hello, everybody! I'm using the geometric morphometric analysis to know if there are any differences in beak's shape between two species. For determine the beak's shape Im using 10 landmarks and 3 semilandmarks. However I have some doubts that I was wondering if you can help me: 1. I'm using the TpsRelw to slide the semilandmarks, however I don't know which slide method is more appropriated to do it? 2. After sliding the semilandmarks using the Chord - min d2 I had 23 RWs. Theoretically if I have 3 semilandmarks, the last 3 RW should explain 0% of the variance, right? However I have one (of theses 3 last RWs) that explain 0,01%. Is it normal? Should I use this RW in further analysis? Thank you very much. Teresa -- Replies will be sent to the list. For more information visit http://www.morphometrics.org
-- Replies will be sent to the list. For more information visit http://www.morphometrics.org
