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- From: joe@decoy.uoregon.edu (Joe St Sauver)
- Newsgroups: sci.math.stat
- Subject: Re: X11
- Date: 20 Nov 1992 01:43:31 GMT
- Organization: University of Oregon Network Services
- Lines: 26
- Message-ID: <1ehfs3INNri6@pith.uoregon.edu>
- References: <1992Nov19.112801.4975@isy.liu.se>
- NNTP-Posting-Host: decoy.uoregon.edu
- Keywords: X11, time series, seasonality
-
- In article <1992Nov19.112801.4975@isy.liu.se> pomat@math.liu.se (Pontus
- Matstoms) writes:
- > I'm looking for references concerning the X11 method for time series
- analysis.
- > What is the method used for and are there any known public domain
- implementations ?
-
- X-11 does seasonal adjustment of monthly or quarterly data, using a
- decomposition method based on separating seasonal patterns from
- trend, cyclical, trading day and irregular fluctuations.
-
- The canonical references for X-11 are:
-
- US Bureau of the Census (1967), X-11 Variant of the Census Method II
- Seasonal Adjustment Program, US Dept of Commerce, Tech Paper 15 (1967
- revision), Washington DC: Gov't Printing Office.
-
- US Bureau of the Census (1969), X-11 Information for the User, US
- Dept of Commerce, Washington DC: Gov't Printing Office.
-
- SAS/ETS offers a nice implementation of the procedure.
-
- Regards,
-
- Joe St Sauver (joe@oregon.uoregon.edu)
- Assistant Director, Academic User Services
-