Summary: The RDAVIDWebService package provides a class-based interface from R programs/scripts to fully access/control the database for annotation, visualization and integrated discovery, without the need for human interaction on its Web site (http://david.abcc.ncifcrf.gov). The library enhances the database for annotation, visualization and integrated discovery capabilities for Gene Ontology analysis by means of GOstats-based direct acyclic graph conversion methods, in addition to the usual many-genes-to-many-terms visualization.

Availability and implementation: RDAVIDWebService is available as an R package from the Bioconductor project (www.bioconductor.org) and on the authors' Web site (www.bdmg.com.ar) under GPL-2 license, subjected to the terms of use of DAVID (http://david.abcc.ncifcrf.gov/content.jsp?file=WS.html).

Contact: [email protected] or [email protected].