-------- Original Message --------
Subject: RE: question
Date: Wed, 20 Feb 2008 10:49:45 -0800 (PST)
From: F. James Rohlf <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Organization: Stony Brook University
To: morphmet@morphometrics.org
References: <[EMAIL PROTECTED]>
You can do that by just doing a GPA separately on each set of three.
Alternatively, you can do a GPA of the entire set (using the tpsRelw
program for example) and then compute group means of the partial warp
scores (not included in the tps programs but you can output the matrix
of partial warp scores in several formats to input to other software). I
would prefer the latter choice as it assures that measures of
within-specimen variation (digitizing error) are all calculated in the
same tangent space.
------------------------
F. James Rohlf, Distinguished Professor
Ecology & Evolution, Stony Brook University
www: http://life.bio.sunysb.edu/ee/rohlf
-----Original Message-----
From: morphmet [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 19, 2008 3:39 PM
To: morphmet
Subject: question
Misdirected post 5 of 7. -mod
-------- Original Message --------
Subject: question
Date: Mon, 11 Feb 2008 08:43:13 -0500
From: morphmet <[EMAIL PROTECTED]>
To: morphmet <[EMAIL PROTECTED]>
-------- Original Message --------
Subject: question
Date: Wed, 6 Feb 2008 04:24:12 -0800 (PST)
From: Saber Sadeghi <[EMAIL PROTECTED]>
To: morphmet@morphometrics.org
Dear Morphometricians
I am a begginer in Geometric Morphometric techniques. I digitized my
wings' samples three times separately to reduce my measurement
error using TPSdig., but I don't know how I can obtain the mean
of them. I want to use this mean landmarks for shape analysis.
Thanks a lot
Hamid
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