The effect of sample size on results from Illuminus. Illuminus average no call rate for 660 k Quad training data for varying numbers of samples (A). The average proportion of calls assigned to the 'no call' class by the model per sample declines as the number of samples included in the analysis increases. Accuracy versus drop rate from 6 different Illuminus analyses in panel A involving varying numbers of samples are also shown (B). As the number of samples analyzed increases, the accuracy measured in terms of agreement with the independent HapMap calls improves. Note that SNPs assigned to the 'no call' class are excluded from these calculations.