Hi, 

Does anyone know how to include observation errors in the arima of R.  I read the manual and tried the example codes, but did not find the solution.  From the outputs of the components "model", it seems to me that the default setting of the arima does not include the observational error in the fitting. Am I right on this one?  Thanks in advance.

Sincerely,

Guiming Wang
Natural Resource Ecology Lab
Colorado State University
Fort Collins, CO 80523
 
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