X-12-ARIMA is the widely used seasonal adjustment software produced, distributed, and maintained by the Census Bureau.
Features include:
The Census Bureau is in the final stages of transitioning from using X-12-ARIMA to X-13ARIMA-SEATS, with most groups within the Census Bureau producing seasonal adjustments with X-13ARIMA-SEATS rather than X-12-ARIMA.
There are distributions of X-12-ARIMA for Windows® PC and Linux/Unix platforms. For Windows systems, the Census Bureau's Win X-12 interface program is recommended, but it is also possible to execute the program using command line input.
In addition, a SAS®/Graph program named X-12-Graph is available that allows users to generate useful graphical diagnostics from X-12-ARIMA (and X-13ARIMA-SEATS) output. It requires no knowledge of SAS®, and can generate more types of graphs than Win X-12.
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