evaluation: Measures of comparison for move plot 3

In moveEZ: Animated Biplots

Measures of comparison for move plot 3

Description

This function calculates measures of comparison after generalised orthogonal Procrustes Analysis is performed in moveplot3. Orthogonal Procrustes Analysis is used to compare a target to a testee configuration. The following measures are calculate: Procrustes Statistic (PS), Congruence Coefficient (CC), Absolute Mean Bias (AMB), Mean Bias (MB) and Root Mean Squared Bias (RMSB).

Usage

evaluation(bp, centring = TRUE)

Arguments

bp	biplot object from moveEZ
centring	logical argument to apply centring or not (default is TRUE)

Value

eval.list	Returns a list containing the measures of comparison for each level of the time variable.
fit.plot	Returns a line plot with the fit measures that are bounded between zero and one: PS and CC. A small PS value and large CC value indicate good fit.
bias.plot	Returns a line plot with bias measures taht are unbounded: AMB, MB and RMSB. Small values indicate low bias.

Examples

data(Africa_climate)
data(Africa_climate_target)
bp <- biplotEZ::biplot(Africa_climate, scaled = TRUE) |> biplotEZ::PCA()
results <- bp |> moveplot3(time.var = "Year", group.var = "Region", hulls = TRUE,
move = FALSE, target = NULL) |> evaluation()
results$eval.list
results$fit.plot
results$bias.plot

data(Africa_climate)
data(Africa_climate_target)
bp <- biplotEZ::biplot(Africa_climate, scaled = TRUE) |> biplotEZ::PCA()
results <- bp |> moveplot3(time.var = "Year", group.var = "Region", hulls = TRUE,
move = FALSE, target = Africa_climate_target) |> evaluation()
results$eval.list
results$fit.plot
results$bias.plot

moveEZ documentation built on Aug. 22, 2025, 5:10 p.m.