Colleagues, I'm pleased to announce the release of new versions of both geomorph (vsn. 4.0.9) and RRPP (vsn. 2.0.4), which are available on CRAN. There are two new and important functions that are included in these updates:
1: The function 'physignal.eigen' is a new approach that allows one to interrogate dimensions of phylogenetic signal in multivariate datasets. In particular, the method allows one to investigate the degree to which phylogenetic signal is concentrated in one or a few dimensions of shape space, which is likely common in empirical systems. The approach was recently described in Mitteroecker, Collyer, and Adams 2024. https://doi.org/10.1093/sysbio/syae035 2: The function 'extended.pgls' is a novel phylogenetic comparative method for multivariate phenotypes. The method has two primary applications. First, it allows users to include more than one individual per species in the analysis (as opposed to using species means). Second, it enables the ability to compare within-species trends across species while simultaneously accounting for phylogenetic non-independence (e.g., compare the degree of sexual dimorphism across taxa while conditioning those patterns on the phylogeny). The method was recently described in Adams and Collyer 2024: https://doi.org/10.1111/2041-210X.14438 To use these new approaches, please be sure to install both the latest RRPP and the latest geomorph. We hope you find the new procedures useful for furthering your research endeavors. Best, Dean (on behalf of the geomorph team). Dr. Dean C. Adams Distinguished Professor of Evolutionary Biology Department of Ecology, Evolution, and Organismal Biology Iowa State University https://faculty.sites.iastate.edu/dcadams/ phone: 515-294-3834 -- You received this message because you are subscribed to the Google Groups "Morphmet" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/morphmet2/CO6PR04MB84270F0860E770BA22A41936A2252%40CO6PR04MB8427.namprd04.prod.outlook.com.
