Plot Distances Before and After vachette Transformation Assuming Proportional Error Model

This function creates a ggplot2 visualization of the distances before and after the vachette transformation between observations and the relative typical curves. It is useful for assessing the impact of proportional error model assumption on the distances.

p.prop.distances(vachette_data)

Arguments

vachette_data

An object of class vachette_data, which contains the necessary data for plotting.

Value

A ggplot2 object representing the plot of distances. The plot compares the log of the original distances to the log of the distances after transformation, color-coded by segment.

Details

The plot includes a reference line with a slope of 1, indicating where the original and transformed distances are equal. The title of the plot is dynamically generated based on the model name provided in the vachette_data object.

The subtitle of the plot indicates whether an additive or proportional error transformation was applied. The caption provides the reference covariate(s) used in the model.