Plot Posterior Probabilities for Response Categories

Creates a ggplot2 visualization showing how each response category updates beliefs about guilt (posterior probabilities).

Usage

plot_eig_posteriors(eig_obj, max_responses = 15, show_prior = TRUE)

Arguments

eig_obj

A lineup_eig object from compute_eig()

max_responses

Maximum number of response categories to display (default = 15)

show_prior

Logical. Whether to show prior probability line (default = TRUE)

Value

A ggplot2 object

Details

This function creates a bar plot showing the posterior probability of guilt for each response category. The prior probability is shown as a dashed line for reference. Response categories that push beliefs toward guilt (posterior > prior) are colored red, while those pushing toward innocence are colored blue.

Examples

data(lineup_example)
eig_result <- compute_eig(lineup_example, confidence_bins = c(0, 60, 80, 100))
plot_eig_posteriors(eig_result)