-------- Original Message --------
Subject: Re: Question about PLS graphical representations in MorphoJ
Date: Tue, 18 Oct 2011 17:51:22 -0400
From: Jana Makedonska <[email protected]>
To: [email protected]
Hello Anneke,
I am looking at PLS graphs, in which the X axis contains the specimens’
scores for the first block while the Y axis contains the specimens’
scores for the second block. So, the shape space is PLS1 (block 1) –
PLS1 (block 2), PLS 2(block 1) – PLS 2 (block 2), etc..Because these
graphs define shape change along a single axis (the X and Y axes contain
correlated shape change in blocks, unlike the most frequently used PCA
graphs), I think that the pattern characteristic of the individuals in
the top right corner is the one in dark blue (although one still has to
control the scale factor as you suggest). For the same reason, the PLS 1
(block 1) - PLS 1 (block 2) shape space is often very similar to the PCA
1 shape space. The newest version of MorphoJ can display shape change
along all PLS axes.
Best regards,
Jana
On Tue, Oct 18, 2011 at 1:32 PM, morphmet
<[email protected]
<mailto:[email protected]>> wrote:
-------- Original Message --------
Subject: RE: Question about PLS graphical representations in MorphoJ
Date: Tue, 18 Oct 2011 10:51:50 -0400
From: <[email protected]>
<mailto:[email protected]>
To: <[email protected]> <mailto:[email protected]>
Hello Jana
That passage refers to the lollipop graphs. As far as I know,
however, MorphoJ can only display the shape changes associated with PLS1
or PLS2, whether it be lollipop or wireframe. I don't think MorphoJ can
give you one representation of the extremes on both axes (specimens in
the top right corner) in a single go, which is what I understand you
want. You can, however, change the size of the vector from 0.1 units to
whatever you need to represent your extreme, but only on one axes at the
time. When you're in the lollipop or wireframe graph, just right click
on the graph and select'set scale factor'.
Good luck!
Best wishes,
Anneke
________________________________
From: morphmet [[email protected]
<mailto:[email protected]>]
Sent: 18 October 2011 14:50
To: morphmet
Subject: Re: Question about PLS graphical representations in MorphoJ
-------- Original Message --------
Subject: Re: Question about PLS graphical representations in
MorphoJ
Date: Mon, 17 Oct 2011 14:46:08 -0400
From: Jana Makedonska<[email protected]>
<mailto:[email protected]><mailto:[email protected]>
To:[email protected]
<mailto:[email protected]><mailto:[email protected]>
Hi Anneke,
Thanks for your reply. I was interested in knowing which morph
characterizes the specimens in the top right corner of the two-block PLS
graphs. I found a relevant passage in the MorphoJ website:
"The length and direction of the line indicates the movement of the
respective landmark from the starting shape to the target shape (e.g.
the mean shape plus the shape change that corresponds to an increase of
0.1 units of Procrustes distance in the direction of the PC1)." It
would be more biologically relevant to characterize the shapes at the
extremes..
Best,
Jana
On Mon, Oct 17, 2011 at 1:18 PM,
morphmet<[email protected]
<mailto:[email protected]><mailto:[email protected]>>
wrote:
-------- Original Message --------
Subject: RE: Question about PLS graphical representations in
MorphoJ
Date: Sat, 15 Oct 2011 19:14:02 -0400
From:<[email protected]>
<mailto:[email protected]><mailto:[email protected]>
To: <[email protected]>
<mailto:[email protected]><mailto:[email protected]>
Dear Jana The dark-blue wireframe displays the changes along the
axes and the turquoise wireframe is the average shape. You can also
tell by comparing the wireframes with the lollipop graph. I hope
that helps and good luck with your analyses! Best wishes, Anneke van
Heteren ______________________________
__________
From: morphmet [[email protected]
<mailto:[email protected]><mailto:[email protected]>]
Sent: 14 October 2011 22:10
To: morphmet
Subject: Question about PLS graphical representations in MorphoJ
-------- Original Message --------
Subject: Question about PLS graphical representations in MorphoJ
Date: Fri, 14 Oct 2011 14:27:18 -0400
From: Jana Makedonska<[email protected]>
<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]>
To: [email protected]
<mailto:[email protected]><mailto:[email protected]><mailto:[email protected]><mailto:[email protected]>
Dear morphometricians,
I have a question regarding the PLS within configuration function
in MorphoJ.
I would like to be able to match shape change to the distribution
of the specimens along the PLS axes.
Thus, I would like to ask which one of the two extreme patterns
(turquoise wireframe or dark-blue wireframe) corresponds to the
individuals of the positive extreme of the PLS axis.
Thanks,
Jana
--
--
"The world is full of mysteries. Life is one. The curious
limitations of finite minds are another."(J.B.S. Haldane, The Causes of
Evolution)
Jana Makedonska, M.Sc.
Ph.D. candidate/ Part-time lecturer
Department of Anthropology
College of Arts& Sciences
State University of New York at Albany
1400 Washington Avenue
12222 Albany, NY
Office phone:518-442-4699 <tel:518-442-4699><tel:518-442-4699
<tel:518-442-4699>>
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--
--
"The world is full of mysteries. Life is one. The curious
limitations of finite minds are another."(J.B.S. Haldane, The Causes of
Evolution)
Jana Makedonska, M.Sc.
Ph.D. candidate/ Part-time lecturer
Department of Anthropology
College of Arts& Sciences
State University of New York at Albany
1400 Washington Avenue
12222 Albany, NY
Office phone:518-442-4699 <tel:518-442-4699>
Consider the environment. Please don't print this e-mail unless you
really need to.
________________________________
This email and any attachments are confidential and intended solely
for the addressee and may also be privileged or exempt from disclosure
under applicable law. If you are not the addressee, or have received
this e-mail in error, please notify the sender immediately, delete it
from your system and do not copy, disclose or otherwise act upon any
part of this email or its attachments.
Internet communications are not guaranteed to be secure or
virus-free. University of Roehampton does not accept responsibility for
any loss arising from unauthorised access to, or interference with, any
Internet communications by any third party, or from the transmission of
any viruses.
Any opinion or other information in this e-mail or its attachments
that does not relate to the business of University of Roehampton is
personal to the sender and is not given or endorsed by University of
Roehampton.
University of Roehampton is the trading name of Roehampton
University, a company limited by guarantee incorporated in England under
number 5161359. Registered Office: Grove House, Roehampton Lane, London
SW15 5PJ. An exempt charity.
--
--
"The world is full of mysteries. Life is one. The curious limitations of
finite minds are another."(J.B.S. Haldane, The Causes of Evolution)
Jana Makedonska, M.Sc.
Ph.D. candidate/ Part-time lecturer
Department of Anthropology
College of Arts & Sciences
State University of New York at Albany
1400 Washington Avenue
12222 Albany, NY
Office phone: 518-442-4699 <tel:518-442-4699>
