macc:Mediation Analysis of Causality under Confounding
Performs causal mediation analysis under confounding or correlated errors. This package includes a single level
mediation model, a two-level mediation model, and a three-level
mediation model for data with hierarchical structures. Under
the two/three-level mediation model, the correlation parameter
is identifiable and is estimated based on a
hierarchical-likelihood, a marginal-likelihood or a two-stage
method. See Zhao, Y., & Luo, X. (2014), Estimating Mediation
Effects under Correlated Errors with an Application to fMRI,
<arXiv:1410.7217> for details.