calc.conditional.ratio: Calculate Conditional Ratios Between Dimensions

In morphErr: Measurement Error Models for Morphometric Data

Calculate Conditional Ratios Between Dimensions

Description

Calculates a ratio between dimensions, conditional on the denominator. Used internally by plotting functions.

Usage

calc.conditional.ratio(
  fit,
  stders = TRUE,
  y.dim,
  x.dim,
  newdata.x.dim,
  type = "lm"
)

Arguments

fit	A fitted model object of class "lme.morph"
y.dim	Integer specifying numerator dimension
x.dim	Integer specifying denominator dimension
newdata.x.dim	Numeric vector of values for denominator dimension
type	Character string, either "lm" or "pca", specifying calculation method

Details

Calculates ratios between dimensions conditional on the denominator dimension value. Can use either linear model or PCA interpretation for the calculations.

Value

A matrix with columns:

Estimate	Conditional ratio estimates
Std. Error	Standard errors for the estimates

morphErr documentation built on Aug. 30, 2026, 5:06 p.m.