R: Data on Social Mobility and the Labour Vote

voting {gnm} | R Documentation

## Data on Social Mobility and the Labour Vote

### Description

Voting data from the 1987 British general election, cross-classified by the class of the head of household and the class of their father.

### Usage

    voting

### Format

A data frame with 25 observations on the following 4 variables.

`percentage`

  the percentage of the cell voting Labour.

`total`

  the cell count.

`origin`

  a factor describing the father's class with levels `1:5`.

`destination`

  a factor describing the head of household's class with levels `1:5`.

### Source

Clifford, P. and Heath, A. F. (1993) The Political Consequences of Social Mobility. J. Roy. Stat. Soc. A, 156(1), 51-61.

### Examples

    ### Examples from Clifford and Heath paper
    ### (Results differ slightly - possible transcription error in
    ### published data?)
    set.seed(1)

    ## reconstruct counts voting Labour/non-Labour
    count <- with(voting, percentage/100 * total)
    yvar <- cbind(count, voting$total - count)

    ## fit diagonal reference model with constant weights
    classMobility <- gnm(yvar ~ -1 + Dref(origin, destination),
                         family = binomial, data = voting)
    DrefWeights(classMobility)

    ## create factors indicating movement in and out of salariat (class 1)
    upward <- with(voting, origin != 1 & destination == 1)
    downward <- with(voting, origin == 1 & destination != 1)

    ## fit separate weights for the "socially mobile" groups
    socialMobility <- gnm(yvar ~ -1 + Dref(origin, destination,
                                           delta = ~ 1 + downward + upward),
                          family = binomial, data = voting)
    DrefWeights(socialMobility)

    ## fit separate weights for downwardly mobile groups only
    downwardMobility <- gnm(yvar ~ -1 + Dref(origin, destination,
                                             delta = ~ 1 + downward),
                            family = binomial, data = voting)
    DrefWeights(downwardMobility)

[Package gnm version 1.1-2 Index]