svydesign               Specify a survey design
twophase                Two-phase designs
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		Calibration and generalised raking
estWeight               Estimated weights for two-phase designs
svrepdesign             Replication-weight designs
as.svrepdesign          Compute replication weights for a design
as.svydesign2           Convert a old svydesign object to
                        the new format.

                 -----

svyplot                 Survey-weighted graphics
svyhist                 Survey-weighted histogram
svyboxplot              Survey-weighted boxplots
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

                 -----

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

                 -----

withReplicates          Replicate variances for arbitrary statistics

                 ----
hadamard                Hadamard matrices
is.hadamard
paley                   Paley-type Hadamard matrices
                 -----

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
regTermTest             Test sets of terms in a regression model
*grake                   Computations for generalised raking
*regcalibrate            Computations for regression calibration
degf                    Degrees of freedom for replication weights
*twophasevar		Variances in two-phase designs

* not exported from NAMESPACE
                 -----
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

            ----Experimental----
                 
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
