The Friendship and normal selection in internet and community 1

The Friendship and normal selection in internet and community 1

To evaluate basic, general homophily within pairs of buddies, we calculated the kinship coefficient (21)

To evaluate basic, general homophily within pairs of buddies, we calculated the kinship coefficient (21) (the likelihood that two alleles sampled at random from two people are identical by state), a measure this is certainly corresponding to half the relatedness measure utilized in genome-wide complex trait analysis (GCTA) draws near (22) (even though the pairs of buddies listed here are perhaps perhaps not really associated). Good values with this measure suggest that genotypes are absolutely correlated, and negative values suggest that two people are perhaps maybe not associated and, in reality, generally have reverse genotypes. To determine heterophily, we calculated the empirical likelihood that two folks have other genotypes at an offered SNP, calculated by the percentage of SNPs which is why neither allele is identical by state.

For contrast, we additionally calculated these measures for all“stranger that is nonkin pairs utilizing the exact exact same group of 1,932 topics who’re when you look at the buddies test.

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