-------- Original Message --------
Subject: Re: Concensus forms in Morpho J
Date: Thu, 19 Mar 2009 08:45:05 -0700 (PDT)
From: Chikako Matsuda <[email protected]>
To: [email protected]
References: <[email protected]>
Hi Chris,
Thank you for your response.
Is there a way I can input all the data that I have and then subdivide
them into groups later for analysis? For example, if I have 14 landmarks
on my species and I input 50 lines of data from Microsoft notepad into
MorphoJ, MorphoJ tells me that I have 14 landmarks in 3 dimensions with
50 observations. However, what if I want MorphoJ to read 5 observations
and not 50? (i.e. I want to group every 10 lines of data that I have in
notepad.) Is there a function in MorphoJ that I can use to group
observations? Or do I have to somehow write my data in a particular way
in notepad before inputing it into MorphoJ?
Thanking you in advance for your help,
Chikako M.
[email protected] <mailto:[email protected]>
On Thu, Mar 19, 2009 at 5:33 AM, morphmet
<[email protected]
<mailto:[email protected]>> wrote:
-------- Original Message --------
Subject: Re: Concensus forms in Morpho J
Date: Thu, 19 Mar 2009 02:02:43 -0700 (PDT)
From: Chris Klingenberg <[email protected]
<mailto:[email protected]>>
Reply-To: [email protected] <mailto:[email protected]>
Organization: University of Manchester
To: [email protected] <mailto:[email protected]>
References: <[email protected]
<mailto:[email protected]>>
Hi Chikako
There is no problem with MorphoJ and negative values in the input data,
except for -9999, which is interpreted as a missing value.
The average shape is the same as the consensus shape (not form: size is
removed -- the consensus is scaled so that it has centroid size 1.0).
Normally, I would do the whole thing the other way round: start out
with
the Procrustes fit of the whole sample, then subdivide into groups and
compare their averages. Unless the variation you are looking at is
*extremely* large, both approaches will give similar results.
Best wishes,
Chris
morphmet wrote:
-------- Original Message --------
Subject: Concensus forms in Morpho J
Date: Wed, 18 Mar 2009 14:10:46 -0700 (PDT)
From: Chikako Matsuda <[email protected]
<mailto:[email protected]>>
To: [email protected]
<mailto:[email protected]>
Hi,
I analyzed a 3D consensus form for 42 populations of a
particular fish
species using Morpho J. (I am assuming the numbers listed below
"average
shape" under the results tab after performing a Procrustes fit is
providing me with the landmark coordinates for the consensus form.)
I would now like to figure out what the global consensus form is
using
the population consensus forms. How do I do this? (I cannot just
input
the landmark coordinates for the population consensus forms to
get a
global consensus form because I believe Morpho J doesn't accept
negative
values and many of my landmark coordinate values for the population
consensus forms are negative.)
Any help would be much appreciated.
Thank you,
Chikako M.
[email protected] <mailto:[email protected]>
<mailto:[email protected]
<mailto:[email protected]>>
--
***************************************************************
Christian Peter Klingenberg
Faculty of Life Sciences
The University of Manchester
Michael Smith Building
Oxford Road
Manchester M13 9PT
United Kingdom
Telephone: +44 161 275 3899
Fax: +44 161 275 5082
E-mail: [email protected] <mailto:[email protected]>
Web: http://www.flywings.org.uk <http://www.flywings.org.uk/>
Skype: chris_klingenberg
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