Skip to main content
. Author manuscript; available in PMC: 2014 Dec 1.
Published in final edited form as: Genet Epidemiol. 2013 Oct 25;37(8):778–786. doi: 10.1002/gepi.21763

Fig. 1.

Fig. 1

Quantile-quantile plot comparing empirical (−log10) p-values for testing the effects of a SNP set using the GEE KM test (based on 1,000,000 simulations under the null model) against those expected under the null from the first two simulation settings: A) randomly sampling scheme; B) ascertained sampling scheme. Each simulated data set has 1000 sibpairs. P-values were calculated using the perturbation based method.