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VOSTAT

Statistical Analysis for the Virtual Observatory



 
The VOSTAT project

VOStat is a web based service providing a suite of tools allowing astronomers to use both simple and sophisticated statistical routines on large datasets. Some of these tools use a large public-domain statistical computing package called R, while other tools are developed specifically for very-large datasets encountered in astronomy research in general, and Virtual Observatory in particular. Datasets can be uploaded in either ASCII or VOTABLE (preferred) format. The statistical computations are performed by the VOStat server and results returned to the user.   TOPCAT may be used to convert ASCII files to VOTables.

The user interacts with VOStat through the VOStat interactive Web form.

Only a small portion of R functionality are available through VOStat. For a full data analysis, users are encouraged to install R locally.

VOStat was originally developed by a research team led by Pennsylvania State University that included members from California Institute of Technology and Carnegie Mellon University, and supported by National Science Foundation's Focused Research Group grant (DMS-0101360, Principal investigator, G. J. Babu).
The development of this new version of VOStat is undertaken jointly by VO-I and the Center for Astrostatistics, with contributions from California Institute of Technology and the Department of Statistics, University of Calcutta.