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Plot parameter posterior distributions

Source: R/plot_posterior_parameters.R
plot_posterior_parameters.Rd

Plotting posterior distributions (and optionally prior distributions) from ABC results.

Usage

plot_posterior_parameters(data, ...)

# S3 method for class 'abc'
plot_posterior_parameters(data, abc_input = NULL, ...)

Arguments

data

An abc object containing posterior samples in adj.values or unadj.values.

...

Additional arguments:

n_rows

Integer; number of rows in the plot grid (default: 2)

n_cols

Integer; number of columns in the plot grid (default: 2)

interactive

Logical; whether to pause between pages and wait for input

abc_input

Optional abc_input object containing prior samples for comparison. If provided, prior distributions are shown as red histograms and posterior distributions as blue density curves.

Value

Invisibly returns `NULL`. Called for its side effect of producing plots.

Details

The plots use the following visual encoding:

  • Posterior distributions: blue density curves

  • Prior distributions (if provided): red histograms with transparency

See also

plot_posterior_parameters.abc

Examples

# Load ABC output from saved file
abc_file <- system.file(
  "extdata", "rdm_minimal", "abc", "abc_rejection_model.rds",
  package = "eam"
)
abc_rejection_model <- readRDS(abc_file)

# Load ABC input for prior comparison
abc_input_file <- system.file(
  "extdata", "rdm_minimal", "abc", "abc_input.rds",
  package = "eam"
)
abc_input <- readRDS(abc_input_file)

# Plot posterior distributions with prior comparison
plot_posterior_parameters(abc_rejection_model, abc_input)