R: Dimensions of survey designs

dimnames.DBIsvydesign {survey} | R Documentation

## Dimensions of survey designs

### Description

`dimnames` returns variable names and row names for the data variables in a design object and `dim` returns dimensions. For multiple imputation designs there is a third dimension giving the number of imputations. For database-backed designs the second dimension includes variables defined by `update`. The first dimension excludes observations with zero weight.

### Usage

    ## S3 method for class 'survey.design'
    dim(x)
    ## S3 method for class 'svyimputationList'
    dim(x)
    ## S3 method for class 'survey.design'
    dimnames(x)
    ## S3 method for class 'DBIsvydesign'
    dimnames(x)
    ## S3 method for class 'ODBCsvydesign'
    dimnames(x)
    ## S3 method for class 'svyimputationList'
    dimnames(x)

### Arguments

`x` | Design object

### Value

A vector of numbers for `dim`, a list of vectors of strings for `dimnames`.

### See Also

`update.DBIsvydesign`, `with.svyimputationList`

### Examples

    data(api)
    dclus1 <- svydesign(ids=~dnum,weights=~pw,data=apiclus1,fpc=~fpc)
    dim(dclus1)
    dimnames(dclus1)
    colnames(dclus1)

[Package survey version 3.32-1 Index]