Vignettes of package chopsticks

Example of genome-wide association testing:
Introduction to chopsticks for analysis of GWA studies
Comparing clustering algorithms:
Comparing clustering algorithms for Illumina platforms
Imputed SNP analyses and meta-analysis with chopsticks:
Imputation and meta-analysis with chopsticks
PCA vignette:
Principal components analysis with chopsticks
TDT vignette:
Use of chopsticks in family--based association studies
An R package for analysis of whole-genome association studies:
Initial paper in "Human Heredity" (now rather out of date, but it describes the philosophy of the package)