BER                     Bernoulli Sampling Design
CONGL                   Conglomerate Sampling
ESTRAT                  Stratified Sampling
M.MET                   Multi-Stage Sampling
MAS                     Simple Random Sampling Design without
                        Replacement
MCR                     Simple Random Sampling Design with Replacement
PPT                     Sampling Design with Replacement and Size
                        Proportional Selection Probabilities
PiPT                    Sampling Design without Replacement with
                        Proportional Inclusion Probabilities for Sizes
ProbSamplingI-package   Design and Sampling Strategies for Parameter
                        Estimation and Sample Size Determination.
R.SIS                   R-Systematic Sampling Design
WHICH1                  Positions of the components of a vector with
                        respect to another vector
n.ESTMAS                Sample Size Through Stratified Sampling
n.MAS                   Sample Size Using Simple Random Sampling Design
                        Without Replacement
n.MASC                  Sample size using simple random sampling design
                        without conglomerate replacement.
