his document contains an update of the User Instructions for the programs T ram o (“Time Series Regression with ARIMA Noise, Missing Observations, and Outliers”) and Seats ('Signal Extraction in ARIMA Time Series'). Some of the new features are the following: Both programs can now be run in an entirely automatic manner, with a fast or a detailed identification procedure; the maximum number of observations has been increased to 600; the restrictions in the orders of the polynomials previously required by Seats have been removed; and a new “business cycle” component has been added. |