selectPCs: Select PCs using different criteria

In debruine/frlgmm: Face Research Lab Geometric Morphometric Functions

Description

selectPCs returns a list of significant PCs as chosen by one of 3 methods (from D.A. Jackson (1993). Ecology, 74, 2204-2214). Defaults to the most accurate and conservative "broken-stick"/"bs" method. Other methods are "Kaiser-Guttman"/"kg" (PCs with eigenvalues greater than the mean eigenvalue) and "total variance"/"tv" (PCs explaining at least total.var variance)

Usage

selectPCs(data, method = "broken-stick", total.var = 0.95)

Arguments

data	Data structure from geomorph or created by readTem()
method	The method to use to choose PCs (Default "broken-stick")
total.var	Total variance to choose for "total variance" method (deafult .95)

Value

A list of chosen PCs

Examples

chosen.pcs <- selectPCs(data)

debruine/frlgmm documentation built on May 15, 2019, 1:55 a.m.