Momocs (version 0.1-03)

Abstract: Momocs: Outline Analysis using R.

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.

References

The companion paper of Momcs is submitted. You can have a look to Claude (2008) that greatly inspired Momocs: Claude, J. (2008) Morphometrics with R, Use R! series, Springer 316 pp.

Examples

# We load a dataset as a \code{Coo} object
data(bot)
bot
# Some calibration
harm.qual(bot, 1)
harm.quant(bot)
harm.pow(bot)
# The idea behing elliptic Fourier analysis
Ptolemy(bot, 1)
# We calculate elliptic Fourier analysis
botF <- eFourier(bot)
botF
# We explore the matrix of coefficients
boxplot(botF)
harm.contrib(botF)
# Some analysis now
manova.nef(botF, "type")
tps(botF, 1, 2, grid.size=50, amp=1.5)
# And one PCA
botD <- pca(botF)
botD
dudi.plot(botD, "type")