getPLSCommonShape: Get the linear combinations associated with the common shape...

In Morpho: Calculations and Visualisations Related to Geometric Morphometrics

Get the linear combinations associated with the common shape change in each latent dimension of a pls2B

Description

Get the linear combinations associated with the common shape change in each latent dimension of a pls2B

Usage

getPLSCommonShape(pls)

Arguments

pls	object of class "pls2B"

Value

returns a list containing

shapevectors	matrix with each containing the shapevectors (in column- major format) of common shape change associated with each latent dimension
XscoresScaled	Xscores scaled according to shapevectors
YscoresScaled	Yscores scaled according to shapevectors
commoncenter	Vector containing the common mean
lmdim	dimension of landmarks

References

Mitteroecker P, Bookstein F. 2007. The conceptual and statistical relationship between modularity and morphological integration. Systematic Biology 56(5):818-836.

See Also

plsCoVarCommonShape

Examples

data(boneData)
proc <- procSym(boneLM)
pls <- pls2B(proc$orpdata[1:4,,],proc$orpdata[5:10,,])
commShape <- getPLSCommonShape(pls)
## get common shape for first latent dimension at +-2 sd of the scores
## (you can do this much more convenient using \code{\link{plsCoVarCommonShape}}
scores <- c(-2,2) * sd(c(commShape$XscoresScaled[,1],commShape$YscoresScaled[,1]))
pred <- restoreShapes(scores,commShape$shapevectors[,1],matrix(commShape$commoncenter,10,3))
## Not run: 
deformGrid3d(pred[,,1],pred[,,2])

## End(Not run)

Morpho documentation built on June 22, 2024, 7:19 p.m.