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假设这个简单的例子:造型beta-二项式回归
treatment <- factor(rep(c(1, 2), c(43, 41)), levels = c(1, 2),labels = c("placebo", "treated"))
improved <- factor(rep(c(1, 2, 3, 1, 2, 3), c(29, 7, 7, 13, 7, 21)),levels = c(1, 2, 3),labels = >c("none", "some", "marked"))
numberofdrugs<-rpois(84, 50)+1
healthvalue<-rpois(84,5)
y<-data.frame(healthvalue,numberofdrugs, treatment, improved)
test<-lm(healthvalue~numberofdrugs+treatment+improved, y)
我是什么supossed办时,我想估计有Rβ-二项式回归?有人熟悉它吗?任何想法是赞赏!
你好!感谢您的意见。我不确定是否需要“总数”。为了更好地理解读者,这里有一个类似的讨论:http://stats.stackexchange.com/questions/11876/fitting-a-beta-binomial-model-in-the-case-of-overdispersion-in-r – user734124 2011-06-14 05:52:49