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
