Statistical Disclosure Control
Contact:Peter-Paul de Wolf
P.O. Box 24500
2490 HA The Hague
Phone: +31 70 337 5060
Last update: 24 February 2015
τ-ARGUS home page
τ-ARGUS is a software program designed to protect statistical tables.
It is one of the main results of the CASC-project.
After a test-phase (coordinated by IStat) version 3 was the final release of the CASC-project. However we have continued our efforts, also thanks to the ESSNet-project and at the end of the ESSNet project version 3.4.1 is available.
Major new extensions are the reading of SPSS-system files, inclusion of the audit-routine,
negative values in Modular and the generation of a-priory files.
You can get version 3.5.0 (Build 27) here.
UnZip the file in a temp-directory and run the install.bat procedure).
(16 September 2013).
See the Manual 3.5 for more information.
For users of the SBS-format a conversion program to convert SBS-files to τ-ARGUS files
can be downloaded here
For users of SAS an interface has been written by the Swedisch colleagues as a deliverable of the ESSNet on SDC harmonisation.
Open Source version of τ-ARGUS
Partly funded by Eurostat, a project was started on 20 December 2012 to port the at that time most recent version of τ-ARGUS to an Open Source version. The resulting version should contain the possibility to be run on a Windows platform as well as on a Linux/Unix platform. Moreover, the cell suppression, CTA and rounding methods should be able to make use of Open Solvers.
An updated official release is now available: version 4.1.0 build 2.
You can download Windows binaries (build 2) here. (Build on 32 bit Windows 7)
For an overview of known issues, click here.
For the calculation of an optimal pattern of secondary suppressions τ-ARGUS uses a LP-solver.
Due to the complexity of the mathematical problems involved we use high quality
commercial LP-solvers. Traditionally we
use the Xpress-MP solver made by FICO.
Alternatively CPlex can be used, e.g. for those users who already have a licence for CPlex and who want to use that solver.
Although τ-ARGUS is free software (a result of a European 5th Framework project), these solvers are commercial products. You can download the τ-ARGUS software from this page, but you have to obtain a licence for one of these solvers yourself, directly from the suppliers.
All questions related to τ-ARGUS (including questions on the installation and use of these solvers) should be directed to Peter-Paul de Wolf.
For the conditions to obtain Xpress-MP (including updates) see the 2010 pricelist here
A summary of the installation procedure for τ-ARGUS can be found here
An upgrade for the XPress drivers for Windows XP can be found here
For the conditions to obtain CPlex see here