----- Forwarded message from Eric Delson <[email protected]> -----
Date: Tue, 26 Mar 2013 23:41:52 -0400
From: Eric Delson <[email protected]>
Reply-To: Eric Delson <[email protected]>
Subject: Re: combining two data set
To: [email protected]
If you have a dorsal and a ventral set of landmarks, an alternative
approach is to combine them first into a unified object using DVLR, a
program we devised for exactly this purpose. Look at
http://pages.nycep.org/nmg/programs.html
where you can find the program and detailed instructions. Note that a
.prn file is just an excel version of a .txt file. You use any simple
text editor to work with these, such as the freeware EditPadLite.
Eric Delson
At 09:53 PM 3/26/2013 Tuesday, you wrote:
> Date: Tue, 26 Mar 2013 07:12:52 -0400
> From: andrea cardini <[email protected]>
> Reply-To: andrea cardini <[email protected]>
> Subject: Re: combining two data set
> To: [email protected]
>
>Dear Wendy,
>There's a good chance that you may find the
>answer to your question in this paper:
>http://www.public.iastate.edu/~dcadams/PDFPubs/1999-Adams-EER.pdf
>
>I have the suspicion that in your case appending
>the shape variables might be the option. Easy to
>do in xls etc. The appended matrices will
>probably have to be analysed in another software
>(PAST, R or any commercial stats soft.). The
>visualization will have to be done for each
>separate structure, however, if you use this method.
>
>Linking in MorphoJ, as far as I know, has a
>different meaning and it is in the context of the
>PLS or similar analyses (for instance, if I aim
>to measure the covariation between the mandible
>and cranium, that might be the analysis). If
>that's you purpose, it's even easier (doable in
>MorphoJ, TPSPLS and probably PAST).
>
>Cheers
>
>Andrea
>
>At 06:23 26/03/2013, you wrote:
>
> >----- Forwarded message from Wendy Den Boer <[email protected]> -----
> >
> > Date: Mon, 25 Mar 2013 07:31:42 -0400
> > From: Wendy Den Boer <[email protected]>
> > Reply-To: Wendy Den Boer <[email protected]>
> > Subject: combining two data set
> > To: [email protected]
> >
> >Hi,
> >
> >I have two data sets, one of several specimens with their landmark
> >values in lateral view, and then the exact same specimens but then
> >with their landmark values in dorsal view. These landmarks were
> >obtained in tpsDIG.
> >
> >I don't want to compare the dorsal and lateral views of these
> >specimens to one another but I want to combine them. Hence, how do I
> >manipulate tpsRELW so that it doesn't treat the dorsal and ventral as
> >separate individuals, but uses both the ventral and dorsal landmark
> >values to produce one individual output for each specimen? Hope this
> >makes sense. If it isn't possible to do this in tpsRELW would I have
> >to get the mean values of the x coordinates of the dorsal and lateral
> >views, and the mean values of the y coordinates of the dorsal and
> >lateral view of each specimen in order to do this?
> >If anyone knows how to do this in MorphoJ and Past that would be great
> >as well. I know there is a link data-sets option in MorphoJ that
> >requires the identifiers in the two data-sets to be the same or that
> >they match. However, when I try to link the two data-sets nothing
> >seems to happen, unless I'm missing the obvious somehow. Sorry, if I am.
> >
> >Many Thanks,
> >
> >Wendy den Boe
----- End forwarded message -----
