2. Genotype Database Framework - GT.DB is a database framework for efficiently managing genome-wide genotype datasets (i.e. 10^6 or more biallelic markers, 1000s of samples), as well as underlying raw data and complex phenotype data, tightly integrated with R libraries for analysis.
3. RODBC Extension - Provides functions for packages that require enhanced database connectivity by exploiting RODBC functions combined with basic R functions and (hopefully) other packages as well.