Calculate parameter distance from true values — get_parameter

Compute ||theta - theta_hat|| distance for all parameters across iterations. This provides a single measure of convergence combining all parameters.

get_parameter_distance(
  trajectories,
  true_values,
  norm_type = "euclidean",
  chain_summary = "mean"
)

Arguments

trajectories: ngme_trajectories object from get_trace_trajectories()
true_values: named list or vector of true parameter values
norm_type: character, type of norm to use: "euclidean" (default), "manhattan", "max"
chain_summary: character, how to summarize across chains: "mean" (default), "median", "chain1"

numeric vector of distances across iterations