R: Hospital Visits Data

HospVisits {vcdExtra} | R Documentation

## Hospital Visits Data

### Description

Length of stay in hospital for 132 schizophrenic patients, classified by visiting patterns, originally from Wing (1962).

### Usage

    data("HospVisits")

### Format

A 3 by 3 frequency table, with format: table [1:3, 1:3] 43 6 9 16 11 18 3 10 16 - attr(*, "dimnames")=List of 2 ..$ visit: chr [1:3] "Regular" "Infrequent" "Never" ..$ stay : chr [1:3] "2-9" "10-19" "20+"

### Details

Both table variables can be considered ordinal. The variable `visit` refers to visiting patterns recorded hospital. The category labels are abbreviations of those given by Goodman (1983); e.g., `"Regular"` is short for “received visitors regularly or patient went home”. The variable `stay` refers to length of stay in hospital, in year groups.

### Source

Goodman, L. A. (1983) The analysis of dependence in cross-classifications having ordered categories, using log-linear models for frequencies and log-linear models for odds. Biometrics, 39, 149-160.

### References

Wing, J. K. (1962). Institutionalism in Mental Hospitals, British Journal of Social and Clinical Psychology, 1 (1), 38-51.

### Examples

    data(HospVisits)
    mosaic(HospVisits, gp=shading_Friendly)

    library(ca)
    ca(HospVisits)
    # surprisingly 1D !
    plot(ca(HospVisits))

[Package vcdExtra version 0.7-1 Index]