SCSPILLEffects

utils.scspill_helpers.structures.SCSPILLEffects(
    att,
    att_ci,
    att_draws,
    att_plugin,
    att_scm,
    cf_mean,
    cf_lower,
    cf_upper,
    spill_mean,
    spill_lower,
    spill_upper,
    ci_level,
    propagate_alpha,
    n_draws_used,
)

Posterior treatment and spillover effects (Theorems 3.1-3.2).

All paths cover the full sample (pre and post periods); pre-period rows of the spillover panel are fit residuals by construction, not causal spillovers.

Attributes

Name	Type	Description
att	float	Posterior mean of the average treatment effect on the treated (mean over the att_draws).
att_ci	tuple of float	Equal-tailed credible interval for the ATT at level ci_level.
att_draws	np.ndarray	One ATT draw per retained posterior draw, shape (M,).
att_plugin	float	ATT evaluated at the posterior means (alpha_hat, rho_hat).
att_scm	float	ATT of the rho = 0 special case (plain Bayesian horseshoe SCM at alpha_hat) – the no-spillover comparator.
cf_mean, cf_lower, cf_upper	np.ndarray	Posterior mean and pointwise credible band of the treated unit’s untreated counterfactual path, each shape (T,).
spill_mean, spill_lower, spill_upper	pd.DataFrame	Posterior mean and pointwise credible band of the spillover effects, each (T, N) indexed by time labels with donor-label columns.
ci_level	float	Credible level of all intervals.
propagate_alpha	bool	True when effect draws paired (alpha^(m), rho^(m)); False when alpha was held at alpha_hat (the R package’s convention).
n_draws_used	int	Number of posterior draws swept in the effects computation.