X-13ARIMA-SEATS support



The US census released a new program for seasonal adjustment that incorporate X-12 and Bank of Spain SEATS methodology (i.e. X-13ARIMA-SEAT). Does NumXL will support this program similar to what it does with X-12-ARIMA?


  • BTW, the current X-12-ARIMA implementation (by US census) supports data sets up to 600 data points (including the forecast points). This may not be an issue for quarterly data, but serious one for macroeconomics monthly data (max of 50 years).

    The X-13ARIMA-SEATS version 1.0 implementation (by US census) increased the program limit to 780 observation (inc. the forecast points), which can accommodate an additional 15 years for monthly time series to allow 65 years history.  

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  • Version 1.1 of X-13ARIMA-SEATS (Build 9) is now available from the U. S. Census Bureau.  This release introduces some new features to the X-13ARIMA-SEATS software, along with corrections to some minor defects.

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