The fewer SNPs (which may be AIMs or not) used to estimate individual-level ancestry, the higher the measurement error. Here I just dump some findings related to this topic. The results are somewhat divergent. The findings Ruiz-Linares cites are somewhat at odds with the others as far as I can tell. It is important to quantify the measurement error in individual-level ancestry estimates because this biases the observed relationships downwards. To correct for this, one must know how much measurement error there is.
AIMs/SNPs, genomic ancestry and measurement error
AIMs/SNPs, genomic ancestry and measurement…
AIMs/SNPs, genomic ancestry and measurement error
The fewer SNPs (which may be AIMs or not) used to estimate individual-level ancestry, the higher the measurement error. Here I just dump some findings related to this topic. The results are somewhat divergent. The findings Ruiz-Linares cites are somewhat at odds with the others as far as I can tell. It is important to quantify the measurement error in individual-level ancestry estimates because this biases the observed relationships downwards. To correct for this, one must know how much measurement error there is.