r - Zero-inflated negative binomial non-integer error -

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i fitting zinb in winbugs using r2winbug , winbugs model code:

model{   for(i in 1:n){     injections[i] ~ dnegbin(p[i],r)     p[i] <- r/r+ramda[i]*(1-u[i])     u[i] ~ dbern(p0[i])     logit(p0[i])  <- alpha0 + alpha1*hiv[i] + alpha2*parteners[i] +                       alpha3*married[i] + alpha4*divorced[i] + alpha5*mage[i]     log(ramda[i]) <- beta0 + beta1*hiv[i] + beta2*parteners[i] +                       beta3*married[i] + beta4*divorced[i] + beta5*mage[i]   }   # priors missing covariates   for(i in 1:n){     parteners[i] ~ dpois(mu)     hiv[i] ~ dbin(q,1)   }    # priors   q ~ dunif(0.0,1.0)   r <- exp(logalpha)   logalpha ~ dnorm(0,1.0e-8)   beta0 ~ dnorm(0,1.0e-8); beta1 ~ dnorm(0,1.0e-8)    beta2 ~ dnorm(0,1.0e-8); beta3 ~ dnorm(0,1.0e-8)   beta4 ~ dnorm(0,1.0e-8); beta5 ~ dnorm(0,1.0e-8)    alpha0 ~ dnorm(0,1.0e-8); alpha1 ~ dnorm(0,1.0e-8); alpha2 ~ dnorm(0,1.0e-8)   alpha3 ~ dnorm(0,1.0e-8); alpha4 ~ dnorm(0,1.0e-8); alpha5 ~ dnorm(0,1.0e-8)   mu ~ dgamma(0.01, 0.01) }

now after calling bugs function, model said correct, data loaded correctly, when initials given, says value of binomial hiv[16] must integer! how can correct problem?


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