| dmft {flexmix} | R Documentation |
Count data from a dental epidemiological study for evaluation of various programs for reducing caries collected among school children from an urban area of Belo Horizonte (Brazil).
data("dmft")
A data frame with 797 observations on the following 5 variables.
male and female.brown, white and black.control, educ, enrich,
rinse, hygiene and all.The aim of the caries prevention study was to compare four methods to prevent dental caries. Interventions were carried out according to the following scheme:
D. Boehning, E. Dietz, P. Schlattmann, L. Mendonca and U. Kirchner (1999): The zero-inflated Poisson model and the decayed, missing and filled teeth index in dental epidemiology. Journal of the Royal Statistical Society A 162(2), pages 195-209.
data("dmft")
dmft.flx <- stepFlexmix(End ~ 1, data = dmft, k = 2,
model = FLXMRglmfix(family = "poisson",
fixed = ~ Gender + Ethnic + Treatment))