grid_pecme              Grid search over the penalty parameter lambda
pecme                   Fit a penalized ECME censored/missing-response
                        linear mixed model
pecme_bootstrap         Cluster (group-level) bootstrap for a pecme fit
pecme_effective_df      Working Ridge-type effective degrees-of-freedom
                        approximation
pecme_lambda_grid       Build a log-spaced lambda grid
pecme_loo               Leave-one-group-out (or leave-one-fold-out)
                        cross-validated log-likelihood
pecme_metrics           Comprehensive fit-quality metrics for a pecme
                        model
pecme_mi_combine        Combine 'pecme' fits across multiply-imputed
                        data sets (Rubin's rules)
pecme_quadrature_check
                        Check sensitivity of a fitted model to the
                        Gauss-Hermite quadrature order
plot.pecme_grid         Plot the regularization path and/or
                        selection-criterion curve
predict.pecme           Predict from a fitted pecme model
simulate_pecme_data     Simulate data from a censored/missing
                        random-intercept linear mixed model
