1504.0 - Methodological News, Dec 2008  
Previous ISSUE Released at 11:30 AM (CANBERRA TIME) 12/12/2008   
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New version of SEASABS released

The Time Series Analysis area (TSA) has been busy over the last few months with the testing and release of the latest version of the ABS seasonal adjustment software SEASABS. This has been a team effort between TSA, its clients and technology application staff. The main new features can be summarised as those that impact our clients via TSUpdate and those that enhance SEASABS functionality as an analysis tool for TSA. Client impacts include: (1) the removal from TSUpdate of rounding options; (2) the population of combined seasonal factors for "never adjusted" series by TSUpdate on the ABSIW; (3) the streamlining of TSUpdate log message presentation; and (4) the inclusion of an hourglass and counter facility for the download application.

SEASABS Version 2.7 has the following enhancements as an analysis tool: an improved interface to X-12-ARIMA for REGARIMA modelling, additional diagnosis for seasonal factor stability testing, improved ability to manage series which are "conceptually related" to improve consistency of analyses, enhanced Chain Volume Measure (CVM) capabilities, an increased range of spectral analyses, improved presentation of aggregation structures, a SEASABS generated queries template, the ability to copy any SEASABS table into a spreadsheet or Notes table, and increased abilities to compare graphs. These new functionalities will streamline TSA practices and increase productivity.

For more information regarding the release, please contact Lisa Apted on (03) 6222 5932 or lisa.apted@abs.gov.au, or Mark Zhang on (02) 6252 5132 or mark.zhang@abs.gov.au.