Simulated data was generated using the mvrnorm function in R and genotype matrix X. The two traits have correlation 0.4 and each has two causal variants, of which one, rs61839660 is shared between traits; trait 1 has second causal variant rs62626317 and trait 2 has second causal variant rs11594656. The traits are from a sample of 2000, with no missing measurements.
beta
An object of class list of length 2.
The two vectors are named vectors that have the SNPs listed in the same order and names given by SNP ids.