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Classification accuracy for four classes problem using all 51793 SNPs in Chromosome 22. Four populations: CEU, CHB, YRI and JPT in HapMap data set are picked out to set up a four-class classification. The X axis is the amount of shrinkage Δ and Y axis is the accuracy (accuracy refer to the correctly classified samples in testing data sets in the 10-fold cross validation) obtained by using our shrunken method. All 51793 SNPs of chromosome 22 are used in this experiment.
