coef                    Extract coefficients of stochastic metafrontier
                        models
efficiencies            Compute efficiency estimates and metatechnology
                        ratios from stochastic metafrontier models
fitted                  Extract fitted values of stochastic
                        metafrontier models
ic                      Extract information criteria of stochastic
                        metafrontier models
logLik                  Extract log-likelihood value of stochastic
                        metafrontier models
nobs                    Extract total number of observations used in
                        frontier models
residuals               Extract residuals of stochastic metafrontier
                        models
smfa                    Stochastic metafrontier estimation
summary                 Summary of results for stochastic metafrontier
                        models
vcov                    Compute variance-covariance matrix of
                        stochastic metafrontier models
