title: A simple model in Winbugs but it says "This chain contains uninitialized variables"
body: <p>I have some simple time to event data, no covariates. I was trying to fit a Weibull distribution to it. So I have the following code. Everything looks good until I load my initials. It says "this chain contains uninitialized variables". But I don't understand. I think Weibull dist only has 2 parameters, and I already specified them all. Could you please advise? Thanks!</p>
  
  <pre><code>model
  {   
      for(i in 1 : N) {                       
              t[i] ~ dweib(r, mu)I(t.cen[i],)
      }   
      mu ~ dexp(0.001)
      r ~ dexp(0.001)
  }
  # Data
  list(
  t.cen=c(0,3.91,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,21.95,23.98,33.08),
  t=c(2.34,NA,5.16,5.63,6.17,6.8,7.03,8.05,8.13,8.36,8.83,10.16,
  10.55,10.94,11.48,11.95,13.05,13.59,16.02,20.08,NA,NA,
  NA),
  N=23
  )
  # Initial values
  list(
  r=3,mu=3
  )
  </code></pre>