----- Forwarded message from "F. James Rohlf" -----
Date: Fri, 6 Jun 2014 03:59:53 -0400
From: "F. James Rohlf"
Reply-To: ro...@life.bio.sunysb.edu
Subject: RE: unbend function of tpsUtil
To: morphmet@morphometrics.org
The tpsUtil software’s unbending function simply does a polynomial regression
for the points. The SSresid is the residual SS from that regression, The R^2
gives the squared multiple regression coefficient as a standardized measure of
fit. The column b2 gives the value of the regression coefficient for the
quadratic term. Probably only useful to tell you if the specimen was bending up
or bending down.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
F. James Rohlf, Distinguished Professor, Emeritus, Stony Brook University
The much revised 4th editions of Biometry and Statistical Tables are now
available:
http://www.whfreeman.com/Catalog/product/biometry-fourthedition-sokal
http://www.whfreeman.com/Catalog/product/statisticaltables-fourthedition-rohlf
From: morphmet_modera...@morphometrics.org
[mailto:morphmet_modera...@morphometrics.org]
Sent: Wednesday, June 04, 2014 8:06 PM
To: morphmet@morphometrics.org
Subject: unbend function of tpsUtil
----- Forwarded message from "Litt, Margaret Aline" -----
Date: Wed, 14 May 2014 09:57:17 -0400
From: "Litt, Margaret Aline"
Reply-To: "Litt, Margaret Aline"
Subject: unbend function of tpsUtil
To: morphmet@morphometrics.org
Hello,
In the view listing panel for the unbend function of tps, what do the b^2 and
SSResid values indicate about the fit?
Aline
mal...@mun.ca
----- End forwarded message -----
----- End forwarded message -----
