Several tools for statistical analysis of time series data can be freely downloaded. They consist of new versions of programs TRAMO, "Time series Regression with ARIMA noise, Missing values and Outliers", and SEATS, "Signal Extraction in ARIMA Time Series", (Gómez and Maravall, 1996), TERROR, "TRAMO for Errors", and TSW, a Windows version of TRAMO-SEATS with some modifications and additions, developed by G. Caporello and A. Maravall at the Banco de España.
The programs are fundamentally aimed at monthly or lower frequency time series. Although structured to meet the needs of an expert analyst, they can be reliably used in an entirely automatic manner on very large sets of time series. The main applications are forecasting, seasonal adjustment, trend-cycle estimation, interpolation, detection and correction of outliers, estimation of calendar and other special effects, and error detection in data. (See Brief description of the programs
(186 KB).)
Papers that document and illustrate the programms' methodology and application.
Additional Information lists some additional applications of TRAMO-SEATS not in this web site.
Contacting us:
For general information, please contact:
For technical information (having to do with TSW, API and macros), contact:
For technical information (having to do with TRAMO-SEATS DOS, algorithms and interfaces), contact:
For methodology related questions, contact:
For computer/programming/interfaces and installation in different platforms, contact: