Simulate a single data set consisting of n subjects and 2 phenotypes for each

sim1(X, B, Vg, Ve, kinship)

## Arguments

X design matrix (incorporating genotype probabilities from two loci), 2n by 2f a matrix of allele effects, f rows by 2 columns a genetic covariance matrix, 2 by 2 an error covariance matrix, 2 by 2 a chromosome-specific kinship matrix, n by n