Statistical Disclosure Control
Contact:Peter-Paul de Wolf
P.O. Box 24500
2490 HA The Hague
Phone: +31 70 337 5060
Last update: 22 May 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 4.1.1 build 1.
You can download the latest Windows binaries, build on 32 bit Windows 7:
Older versions, build on 32 bit Windows 7:
You can download Linux binaries, Build on 32 bit Ubuntu 14.4.0:
You can download the sources (4.1.0) here.
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