coding                   combines two or more surrogate/auxiliary
                         variables into a vector
ectopic                  The Ectopic Pregnancy Dataset
meanscore                Mean Score Method for Missing Covariate Data in
                         Logistic Regression Models
ms.nprev                 Logistic regression of two-stage data using
                         second stage sample and first stage sample sizes
                         or proportions (prevalences) as input
simNA                    Simulated dataset for illustrating the meanscore
                         function
