On 02-02-2010, at 21:11, Berend Hasselman wrote:
 
 This does not agree with your specification above and will give an  error since you are
indexing a scalar.
 I think this should be:         
 
 y[jj] = beta1 + beta2 + u[jj]
  
I should have written:
y[jj] = beta1 + beta2 * y[jj-1] + u[jj]
It's correct in the script.
Berend