Blog Archives

Geomorph update 2.1.6 Now Available!

June 25, 2015
By

Geomorph users,We have uploaded version 2.1.6 of geomorph* to CRAN. The windows and mac binaries have been compiled and the tarball is available.New Features:New globalIntegration() function for evaluating integration vs. self-similarity...

Read more »

Tips & Tricks 9: Shape Changes and Hypothetical Shapes

June 18, 2015
By
Tips & Tricks 9: Shape Changes and Hypothetical Shapes

Geomorph users,This month's tips and tricks was prompted by a user email from Tim Astrop, thanks Tim!How can I create a hypothetical shape representing a point in shape space?Today we will use some relatively simple R code to create a shape based on position in a Principal Component (PC) shape space and visualise this shape as a change from the mean using...

Read more »

Geomorph update 2.1.5 Now Available!

May 24, 2015
By
Geomorph update 2.1.5 Now Available!

Geomorph users,We have uploaded version 2.1.5 of geomorph* to CRAN. The windows and mac binaries have been compiled and the tarball is available.New Features:New Auto Mode allows users to include pre-digitized landmarks added to build.te...

Read more »

Geomorph beta in development (2.1.5)

May 3, 2015
By

Dear geomorph users,We've been busy adding some new functions to the forthcoming v.2.1.5, currently in beta stage and available on gitHub (installed using: devtools::install_github("EmSherratt/geomorph",ref = "Develop")). Users be aware that ...

Read more »

Geomorph update 2.1.4 Now Available!

April 4, 2015
By

Geomorph users,We have uploaded version 2.1.4 of geomorph to CRAN. The windows and mac binaries have been compiled and the tarball is available*.Small Changes:warpRefMesh() generalised - now takes a mesh3d object (i.e. made from read.ply()) rather...

Read more »

Tips & Tricks 8: Examining Replicate Error

April 4, 2015
By

Geomorph users,When starting out in a geometric morphometrics study, the common questions are ones of repeatability and measurement error.How much of the variation in the Procrustes residuals is due to human (digitizing) error? How much is du...

Read more »

Geomorph and Multivariate Datasets

March 25, 2015
By

Did you know that geomorph is not just for landmark-based geometric morphometric (shape) data?We are committed to providing statistical tools for multivariate AND multidimensional morphometric data.As laid out in the recent series of papers on Phylogenetic Comparative Methods for high-dimensional data (Adams 2014a, Adams 2014b, Adams 2014c, Adams & Felice 2014), harnessing the R-mode – Q-mode equivalency as first shown...

Read more »

News So Far for Geomorph v2.1.4beta

March 23, 2015
By

Dear geomorph users,we have so far recognised and fixed the following bugs known to be in geomorph v.2.1.3 on CRAN, and these are available in the GitHub repository of v.2.1.4beta:  BUG FIXES    Corrected error readland.tps() "Error...

Read more »

Tips & Tricks 7: Plotting PCA with TPS grids

March 19, 2015
By
Tips & Tricks 7: Plotting PCA with TPS grids

Geomorph users,Our function plotTangentSpace() performs a Principal Components Analysis (PCA) of shape variation and plots two dimensions of tangent space for a set of Procrustes-aligned specimens and also returns the shape cha...

Read more »

Installing Geomorph and R by Source

March 16, 2015
By

Since we started having a beta version of geomorph on GitHub, we understand that installation has become a little bit more complex. We were also aware of the issues for Mac Snow Leopard users.I have written a detailed summary of how to install geomorph...

Read more »