[MORPHMET] Re: testing for convergence in 3D shape space

2016-01-28 Thread Christy Hipsley
Thanks everyone! On Thursday, January 28, 2016 at 1:39:43 AM UTC+11, Christy Hipsley wrote: > > Dear All, > > I'm working with a 3D GM data set and am looking for a specific test of > convergence that also accounts for phylogeny. After some searching it's > still no

[MORPHMET] comparing ontogenetic trajectories in a phylogenetic framework

2016-02-22 Thread Christy Hipsley
Dear GM community, I'd like to get some opinions on methods for comparing ontogenetic trajectories of extant taxa within a phylogenetic framework. I've read several papers and spoken to colleagues about this and there appears to be no satisfactory conclusion. It seems that one can either

[MORPHMET] testing for convergence in 3D shape space

2016-01-27 Thread Christy Hipsley
Dear All, I'm working with a 3D GM data set and am looking for a specific test of convergence that also accounts for phylogeny. After some searching it's still not clear to me what is appropriate - so far I only see programs that use reduced PC axes as continuous characters, but nothing that

[MORPHMET] MeshLab - setting default FOV as Ortho?

2017-01-19 Thread Christy Hipsley
Hi all, Does anyone know if it's possible to set the Field of View (FOV) in MeshLab to Ortho as a default setting? It drives me nuts each time I open a file to have to change it, and I don't know why anyone would work in MeshLab without automatically changing this anyway. I've asked a couple

[MORPHMET] Re: allometry and phylogeny

2016-09-06 Thread Christy Hipsley
To follow up on Damien's question and Dean's response, which values from the advanced.procD.lm results would one use for reconstructing species ontogenetic slopes? There are several outputs relating to slope from that test, like "slopes", "slope.lengths", "slopes.dist", "slopes.angles". I

[MORPHMET] the problem with CVA... or is it?

2016-11-28 Thread Christy Hipsley
Dear Morphmet-ers, I'm seeking advice on methods for visualizing shape features that distinguish multiple groups using GM. I know CVA has fallen out of favor for a number of reasons discussed here - e.g., more variables than groups, nonisotropic variation: Mitteroecker, P., and Bookstein, F.

[MORPHMET] Re: procD.allometry with group inclusion

2016-12-12 Thread Christy Hipsley
Hi Mike, I have a follow-up to Tsung's procD.allometry question - If the initial HOS test is nonsignificant for (shape~size, ~group), but the following ANOVA table is significant for size and group effects, can one interpret that as differences in y-intercept but not slope? So basically the

[MORPHMET] fitting lines to allometric plots?

2016-12-20 Thread Christy Hipsley
Hi all, This is a fairly simple question, but one that I am unsure of - is it appropriate to fit lines to plots of allometric scores, for example regression score or common allometric component (CAC) vs size, or the first residual shape component (RSC) vs CAC? If the scores represent

[MORPHMET] creating mirror reflection of one-side landmarks

2018-08-23 Thread Christy Hipsley
Dear all, I'm working with a 2D landmark data set of vertebrae in anterior view in which one side (right) has been landmarked, with 5 landmarks along the midplane axis for a total of 12 points. I would like to generate a mirror reflection of the paired landmarks, and wonder if there is an

[MORPHMET] modularity tests - effect of negative value in correlation matrix?

2019-02-20 Thread Christy Hipsley
Dear all, I'm seeking help with modularity tests using the EMMLi package in R. I have developmental data for different species of mammals, and my goal was to group specimens in each species by age classes (e.g., neonate, juvenile, adult based on tooth eruption) and then test different

[MORPHMET] new article out on digital morphology data openness based on Morphmet survey

2019-04-29 Thread Christy Hipsley
Dear Morphmet community, Almost 2 years ago Emma Sherratt and I posted a survey here asking your feedback on generation and use of digital morphology data, and we are happy to announce that those results have now been published in a Comment article in Scientific Data titled '*Psychology, not

[MORPHMET] papers with 1000+ 3D models?

2019-09-04 Thread Christy Hipsley
Hi all, I'm looking for GM or other similar papers that include high numbers of 3D models, like several hundreds or over a thousand. Particularly if these were generated using microCT. Thank you for any help, Christy -- MORPHMET may be accessed via its webpage at http://www.morphometrics.org