GPRMortality            Gaussian Process Regression for estimation and
                        projection each age-sex combination of
                        mortality rates
GPRMortalityChild       Gaussian Process Regression for estimation and
                        projection of child (under-5) mortality rates
GPRMortalitySummary     summary table for Gaussian Process Regression
                        results
data.mean               mean of adult mortality rates
data.mean.child         mean of child mortality rates
data.mortality          age-sex specific mortality rates data set
data.mortality.child    child mortality rates data
