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New Capabilities and Methods of the X-12-ARIMA Seasonal Adjustment Program
New Capabilities and Methods of the X-12-ARIMA Seasonal Adjustment Program
Abstract
X-12-ARIMA is the Census Bureau's new seasonal adjustment program. It provides four types of enhancements to X-11-ARIMA: (1) Alternative seasonal, trading day, and holiday effect adjustment capabilities that include adjustments for effects estimated with user-defined regressors, additional seasonal and trend filter options, and an alternative seasonal trend irregular decomposition. (2) New diagnostics of the quality and stability of the adjustments achieved under the options selected. (3) Extensive time series modeling and model selection capabilities for linear regression models with ARIMA errors, with optional robust estimation of coefficients. (4) A new user interface with features to facilitate batch processing large numbers of series.
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Page Last Revised - October 8, 2021
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