gamlss.data (version 4.2-7)

margolin: The Margolin Data files for GAMLSS

Description

margolin: Margolin et al. (1981) present data from an Ames Salmonella assay, where y is the number of revertant colonies observed on a plate given a dose y of quinoline. The data were subsequently analysed by Breslow (1984), Lawless (1987) and Saha and Paul (2005).

Usage

data(margolin)

docType

data

Details

Data sets usefull for the GAMLSS booklet

References

Breslow, N. (1984) Extra-Poisson variation in log-linear models. Applied Statistics, 33, 38-44. Hand et al. (1994) A handbook of small data sets. Chapman and Hall, London. Lawless, J.F. (1987) Negative binomial and mixed Poisson regression. The Canadian Journal of Statistics, 15, 209-225. Margolin, B.H., Kaplan, N. and Zeiger, E. (1981) Statistical analysis of the Ames salmonella/microsome test. Proceedings of the National Academy of Science, U.S.A., 76, 3779-3783. Saha, K. and Paul, S. (2005) Bias-Corrected Maximum Likelihood Estimator of the Negative Binomial Dispersion Parameter. Biometrics, 61, 179-185

Examples

data(margolin)
with(margolin, plot(y~x))