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Conducting Bayesian Analysis Online Using BUGS
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Built-in models:Conditional linear growth curve models
!Code {{ model{ # Model specification for linear growth curve model for (i in 1:N){ b[i,1:2]~dmnorm(mub[i, 1:2], Inv_D[1:2,1:2]) mub[i,1]<-beta[1]+beta[2]*x1[i]+beta[3]*x2[i] mub[i,2]<-beta[4]+beta[5]*x1[i]+beta[6]*x2[i] for (t in 1:4){ y[i, t] ~ dnorm(muY[i,t], Inv_Sig_e2) muY[i,t]<-b[i,1]+b[i,2]*t } } #Priors for model parameter for (i in 1:6){ beta[i] ~ dnorm(0, 1.0E-6) } Inv_D[1:2,1:2]~dwish(R[1:2,1:2], 2) R[1,1]<-1 R[2,2]<-1 R[2,1]<-R[1,2] R[1,2]<-0 Inv_Sig_e2 ~ dgamma(.001, .001) Sig_e2 <- 1/Inv_Sig_e2 D[1:2,1:2]<-inverse(Inv_D[1:2,1:2]) rho_LS <- D[1,2]/sqrt(D[1,1]*D[2,2]) } }}
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. Last changed: 2014/11/12 02:47
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