leukoplakia {catdata}

Leukoplakia

Description

The leukoplakia data is about occurence of oral leukoplakia with covariates smoking and alcohol consumption.

Usage

data(leukoplacia)

Format

A data frame with 16 observations on the following 4 variables. Considering the weighting variable "Freq", there are 212 cases.

Leukoplakia

Has the person oral leukoplakia? yes = 1, no = 0

Alcohol

How much alcohol did the person drink on average? no = 1, less then 40g = 2, less then 80g = 3, more then 80g = 4

Smoker

Smoker? yes = 1, no = 0

Freq

Frequency of observation

Source

Fahrmeir, Hamerle and Tutz (1996), Multivariate statistische Verfahren, Berlin: de Gruyter

Examples

## Not run: 
##look for:
if(interactive()){vignette("loglinear-leukoplakia")}

## End(Not run)