Hi Would you able to explain "span the space of possible shape variation in the selected landmarks" a bit more please? As defined in Morphometric glossary (http://life.bio.sunysb.edu/morph/glossary/gloss2.html), as I understood, partial warp scores are quantities that characterise the location of a set of landmarks corresponding to a reference? Thanks Ruwanthi
>There are two scores because on is the projection of the x-coordinates onto >a principal warp and the other is the projection of the y-coordinates. In 3D >there would also be a projection of the z-coordinate. > >It is best not to try to interpret them individually. Their purpose is to >span the space of possible shape variation in the selected landmarks - not >to provide shape variables that are especially interpretable biologically >when taken one at a time. > >-------------------- >F. James Rohlf, Distinguished Professor, Graduate Program Director >Dept. Ecology & Evolution, Stony Brook University, Stony Brook, NY >11794-5345 >Web: http://life.bio.sunysb.edu/ee/rohlf >Morphometrics: http://life.bio.sunysb.edu/morph > > > >> -----Original Message----- >> From: morphmet [mailto:[EMAIL PROTECTED] >> Sent: Thursday, May 26, 2005 10:26 AM >> To: morphmet >> Subject: Partial warps >> >> Hi >> >> How do you interpret partial warp scores in two dimensions, >> specially in a biological application? In two dimensions, >> there are two scores for each partial >> warp. >> >> Thanks in advance for any comment/advice. >> Ruwanthi >> >> -- >> 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
