budget                  Optimal sampling design for 2-stage studies
                        with fixed budget
cass1                   The CASS pilot dataset with sex as auxiliary
                        covariate
cass2                   The CASS pilot dataset with sex and
                        categorical weight as auxiliary variables
coding                  combines two or more surrogate/auxiliary
                        variables into a vector
fixed.n                 Optimal second stage sampling fractions,
                        subject to fixed sample sizes at the first and
                        second stage
ms.nprev                Logistic regression of two-stage data using
                        second stage sample and first stage sample
                        sizes or proportions (prevalences) as input
precision               Optimal sampling design for 2-stage studies
                        with fixed precision
