Rpad is an interactive, web-based analysis program. Rpad pages are interactive workbook-type sheets based on R, an open-source implementation of the S language. Rpad is an analysis package, a web-page designer, and a gui designer all wrapped in one. Rpad makes it easy to develop powerful data analysis applications that can be shared with others (most likely on an intranet). The user doesn't have to install anything--everything's done through a browser.