decomposition

Shared decomposition math helpers for MMM counterfactuals.

Functions

identity_counterfactual_component(component, ...)	Per-draw identity-link contribution for a component.
log_counterfactual_remove_component(...)	Per-draw log-link counterfactual contribution for a component.
original_scale_prediction_from_mu(mu, ...)	Convert log-link linear predictor samples to original scale.
safe_proportional_share(numerator, denominator)	Compute a finite proportional share, guarding against zero denominators.