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Using Peddy to Visualize a Manufactured Error in a CEPH Pedigree
Two individuals (red) where the sex stated in the PED file does not match that inferred from the rate of heterozygous calls on the non-pseudo autosomal region of the X chromosome are shown in (A). In the relatedness plot (B), we can see that the swap has caused unexpected relationships (or lack thereof) for both individuals. In (C) and (D), these errors have been resolved by switching the names of the sample in the PED.
