cluster.estimator       Parameter estimation for cluster samples
cluster.sample          Cluster sample for non-grouped data.
cluster.samplesize      Sample size estimation on cluster sampling
srs.domainestimator     Simple Random Sample parameter estimation of
                        domains.
srs.estimator           Simple Ramdom Sampling parameter estimation.
srs.sample              Simple Random Sample
srs.samplesize          Simple Random Sample size.
strata.allocation       Strata allocation given a sample size
strata.estimator        Parameter estimation of stratified data
strata.sample           Stratified sample
strata.samplesize       Sample size estimation on stratified sampling
strata.samplesize.cost
                        Strata sample size by costs function
syst.all.samples        Systematic samples
syst.anova              Analysis of variance of population data
syst.estimator          Parameter estimation on a systematic sample
syst.intercorr          Stratified correlation coefficient
syst.intracorr          Intraclass correlation coefficient
syst.sample             Systematic sampling sample
