articleMethods in Ecology and EvolutionJan 25, 2013BRONZE OA

geomorph: an r package for the collection and analysis of geometric morphometric shape data

DCDean C. AdamsEOErik Otárola‐Castillo

Iowa State University · Harvard University

Indexed incrossrefdoaj

Abstract

Summary Many ecological and evolutionary studies seek to explain patterns of shape variation and its covariation with other variables. Geometric morphometrics is often used for this purpose, where a set of shape variables are obtained from landmark coordinates following a P rocrustes superimposition. We introduce geomorph: a software package for performing geometric morphometric shape analysis in the r statistical computing environment. Geomorph provides routines for all stages of landmark‐based geometric morphometric analyses in two and three‐dimensions. It is an open source package to read, manipulate, and digitize landmark data, generate shape variables via P rocrustes analysis for points, curves and…

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Authors

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Topics & keywords

Topics
Keywords
  • Morphometrics
  • Landmark
  • Superimposition
  • Shape analysis (program analysis)
  • Geometric shape
  • Principal component analysis
  • Variation (astronomy)
  • Phylogenetic tree
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