-------- Original Message --------
Subject: Re: TPSregr
Date: Thu, 6 Aug 2009 01:55:23 -0700 (PDT)
From: beatriz gamarra <[email protected]>
To: [email protected]
References: <[email protected]>
Thanks Andrea!!
2009/8/4 morphmet <[email protected]
<mailto:[email protected]>>
-------- Original Message --------
Subject: Re: TPSregr
Date: Mon, 3 Aug 2009 23:38:59 -0700 (PDT)
From: andrea cardini <[email protected]
<mailto:[email protected]>>
To: [email protected] <mailto:[email protected]>
Dear Beatriz,
you don't get an R2 as in a simple regression, but you get the same
kind of
information in terms of % of variance explained by the independent
variable(s). It's this (below) bit of the output that you find in the
report window:
Squared Procrustes chord residual distance for each specimen:
Spec Ref d^2 Resid d^2
1 0.005740 0.000004
2 0.001289 0.000001
3 0.000004 0.000004
4 0.001439 0.000001
5 0.005142 0.000004
----------- -----------
Sum 0.013613 0.000014
Sum d2 of predicted fit = 0.013599
Percent unexplained = 0.1061%
Do 100% minus 0.1061% and that will be the 'multivariate equivalent'
of the
R2.
Good luck.
Cheers
Andrea
At 10:41 03/08/2009 -0400, you wrote:
-------- Original Message --------
Subject: TPSregr
Date: Mon, 3 Aug 2009 03:12:12 -0700 (PDT)
From: beatriz gamarra <[email protected]
<mailto:[email protected]>>
To: [email protected]
<mailto:[email protected]>
Hello,
I have doubts about the results by using TPSregr software. I
have done a
multivariate regression anyalisis with centroid size, as an
independent
variable, and the uniform and non uniform component,as the
dependent
variables. In the report obtained I can't see which of the
results is
the r2 value (square of correlation coefficient). Could someone
help me
on this issue?
Thanks.
Beatriz Gamarra
[email protected] <mailto:[email protected]>
<mailto:[email protected] <mailto:[email protected]>>
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Dr. Andrea Cardini
Lecturer in Animal Biology
Museo di Paleobiologia e dell'Orto Botanico, Universitá di Modena e
Reggio
Emilia
via Università 4, 41100, Modena, Italy
tel: 0039 059 2056532; fax: 0039 059 2056535
Honorary Fellow
Functional Morphology and Evolution Unit, Hull York Medical School
University of Hull, Cottingham Road, Hull, HU6 7RX, UK
University of York, Heslington, York YO10 5DD, UK
E-mail address: [email protected]
<mailto:[email protected]>, [email protected]
<mailto:[email protected]>,
[email protected] <mailto:[email protected]>
http://hyms.fme.googlepages.com/drandreacardini
http://ads.ahds.ac.uk/catalogue/archive/cerco_lt_2007/overview.cfm#metadata
More on publications at:
http://www.cons-dev.org/marm/MARM/EMARM/framarm/framarm.html
LOOK FOR BIBLIOGRAPHIA MARMOTARUM, CLICK ON THE LETTER C AND LOOK FOR
"CARDINI" (p. 8-9 until March 2009)
http://hyms.fme.googlepages.com/dr.sarahelton-publications
LOOK FOR "CARDINI"
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