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What is wrong with this very simple model? Of course
this is a simpler version of what I want to do; but it
annoys me that I can't model it :-/

model {
  for (i in 1:N-1) {
     x[i+1] <- x[i] + error[i]
     error[i] ~ dnorm(0, tau)
  }
  sigma <- 1 / sqrt(tau)
}

list(N = 10, x = c(0, 2, 6, 9, 6, 11, 10, 10, 13, 13))

list(tau = 1)

It checks, loads the data, but when I try to compile,
it gives the error:

  multiple definitions of node x[2]

Alberto Monteiro

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