Skip to main content
Grant Details

Grant Number: 5R44CA067734-03 Interpret this number
Primary Investigator: Schimert, James
Organization: Insightful Corporation
Project Title: Statistical Software for Resampling Methods
Fiscal Year: 1998
Back to top


Medical data often require complex models. For example, clinical monitoring produces time induced correlation, and relationships among variables change due to medical intervention. Many popularly used biostatistical procedures depend on approximations made for mathematical tractability. Resampling methods are computationally intensive techniques which approximate the distribution of a statistic using only the observed data. The two-fold advantages of resampling methods are that (1) they are conceptually simple and (2) they often apply in complex problems inaccessible through other techniques. Phase I research will focus on designing software in the S-PLUS environment in a way that facilitates use of resampling methods. We plan to achieve this through judicious use of presentation tools, and through a flexible software design. This design will support the different needs of (1) data analysts and (2) biostatistical researchers who want to modify and extend resampling capabilities. In Phase I we will prototype the design, focusing on the linear model. Resampling methods offer the opportunity to revolutionize statistical practice: making it easier to use and understand, yet applicable to complex problems. PROPOSED COMMERCIAL APPLICATION: Implementation of resampling methods in a modern interactive statistical language and graphics system as S-PLUS will find a ready market in all areas of statistical application.

Back to top


Error Notice

If you are accessing this page during weekend or evening hours, the database may currently be offline for maintenance and should operational within a few hours. Otherwise, we have been notified of this error and will be addressing it immediately.

Please contact us if this error persists.

We apologize for the inconvenience.
- The DCCPS Team.

Back to Top