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Conducting Bayesian Analysis Online Using BUGS
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Built-in models:Poisson regression
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!Model The Poisson regression can be written as {{%% \[y_{i} \sim Poisson(\lambda_{i})\] \[\log\lambda_{i} = \beta_{0}+\beta_{1}x_{1i}+\ldots+\beta_{q}x_{qi}\] %%}} !Code {{ model{ for (i in 1:N){ log(lambda[i])<-beta0+beta1*(x1[i]-mean(x1[]))+beta2*(x2[i]-mean(x2[])) y[i]~dpois(lambda[i]) } beta0~dnorm(0,1.0E-6) beta1~dnorm(0,1.0E-6) beta2~dnorm(0,1.0E-6) } }}
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. Last changed: 2014/11/12 02:45
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