Momocs (version 0.1-01)

Momocs-package: Outline Analysis using Elliptical Fourier Analysis.

Description

Momocs is intended to ease and popularize shape analysis of outlines (especially using elliptical Fourier analysis). It mostly hinges on the functions developped in Morphometrics with R (Claude, 2008). From outline extraction of images and elliptical Fourier calculation to multivariate analysis and the visualization of transformations within the morphological space, Momocs provides a complete and convenient toolkit to specialists within every field that are, or may be, interested in morphological comparisons of outlines. It comes with its vignette that details step by step how to perform Elliptical Fourier Analysis on a set of shapes, whether starting from images or coordinates in .txt files.

References

Claude, J. (2008) Morphometrics with R, Use R! series, Springer 316 pp.

Examples

data(bottles.cont)
plot(bottles.cont)
dev.qual(bottles.cont)
dev.quant(bottles.cont)
harm.pow(bottles.cont)
nef <- get.Nef(bottles.cont)
fac <- factor(rep(c("beer","whisky"), each=20))
pca(nef, fac)
pca3(nef, fac)
pca(tps(nef, fac)
from <- c(-0.5, 0.25)
to <- -from
tps.iso(nef, fr=from, to=to)
tps.vf(nef, fr=from, to=to)
tps.grid(nef, fr=from, to=to)