VGAM (version 1.0-5)

toxop: Toxoplasmosis Data

Description

Toxoplasmosis data in 34 cities in El Salvador.

Usage

data(toxop)

Format

A data frame with 34 observations on the following 4 variables.

rainfall

a numeric vector; the amount of rainfall in each city.

ssize

a numeric vector; sample size.

cityNo

a numeric vector; the city number.

positive

a numeric vector; the number of subjects testing positive for the disease.

Details

See the references for details.

References

Efron, B. (1978) Regression and ANOVA With zero-one data: measures of residual variation. Journal of the American Statistical Association, 73, 113--121.

Efron, B. (1986) Double exponential families and their use in generalized linear regression. Journal of the American Statistical Association, 81, 709--721.

See Also

double.expbinomial.

Examples

# NOT RUN {
 with(toxop, plot(rainfall, positive / ssize, col = "blue"))
plot(toxop, col = "blue") 
# }