Comparison of prediction accuracies between models built with and without imputed SNPs from four arrays. Half of the common set of samples genotyped on Affy 500K, Affy 6.0, Illumina 550K, Illumina 1.2M arrays in the WTCCC cohort were used as the training set (N = 501) and the other half were used as the validation set (N = 500). Each panel shows a comparison of prediction accuracies for the validation set, with models built using only SNPs observed from the array or using HapMap SNPs observed and imputed from the array. The confidence threshold was set at CT = 0.
Zhang et al. BMC Genetics 2011 12:39 doi:10.1186/1471-2156-12-39