svydesign               Survey sample analysis.
subset.survey.design    Subset of survey
update.survey.design    Add variables to a survey design
postStratify            Post-stratify a survey design
rake                    Rake a survey design
calibrate		G-calibration (GREG) for survey designs
svrepdesign             Replication-weight designs
as.svrepdesign          Convert svydesign to svrepdesign
subset.svyrep.design    Subset of svrepdesign
update.svyrep.design    Add variables to svrepdesign
as.svydesign2           Convert a old svydesign object to
                        the new format.

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svyplot                 Survey-weighted graphics
svyhist                 Survey-weight histogram
svyby                   Tables of statistics 
ftable.svystat          Formatted tables of statistics
ftable.svrepstat
ftable.svyby
cv			extract coefficient of variation
SE			extract standard error
deff			extract design effect

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svycoxph                Survey-weighted Cox models
svyglm                  Survey-weighted generalised linear models.
svyquantile             Summary statistics for sample surveys
svytotal
svymean
svyvar
svyratio
svytable                Contingency tables
svychisq                Tests for two-way tables
svymle                  Maximum pseudolikelihood estimation in complex
                        surveys

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withReplicates          Replicate variances for arbitrary statistics

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nonresponse		create non-response object
sparseCells		look for sparse cells
neighbours		find neighbours of a cell
joinCells		collapse a set of cells together
weights.nonresponse	extract non-response weights

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Utility functions:
svy.varcoef             Sandwich variance estimator for glms
svyCprod                Computations for survey variances
svyrecvar               Computations for multistage samples
svrVar                  Computations for replication variances
jk1weights              create replication weights
jknweights              create replication weights
bootweights             create replication weights
brrweights              create replication weights
hadamard                Hadamard matrices
paley                   Paley-type Hadamard matrices
regTermTest             Test sets of terms in a regression model

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Data:
fpc                     Small artificial example
scd                     Cardiac arrests example
api                     California Academic Performance Index
crowd                   Small example from VPLX manual
mu284                   Two-stage sample from MU284 population
