Passiflora is a genus of about 550 species of flowering plants. This dataset contains 15 landmarks in 2 dimension of 3319 leaves of 40 species. Papers listed in the reference section analyzed the data and found 7 clusters.
data(passiflora)
a named list containing
a 3d array of size
a length-
a length-
chitwood_divergent_2017Riemann
chitwood_morphometric_2017Riemann
# NOT RUN {
data(passiflora) # load the data
riemobj = wrap.landmark(passiflora$data) # wrap as RIEMOBJ
pga2d = riem.pga(riemobj)$embed # embedding via PGA
opar <- par(no.readonly=TRUE) # visualize
plot(pga2d, col=passiflora$class, pch=19, cex=0.7,
main="PGA Embedding of Passiflora Leaves",
xlab="dimension 1", ylab="dimension 2")
par(opar)
# }
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