Calculate the phenotypes covariance matrix Sigma

calc_Sigma(Vg, Ve, kinship = NULL, n_mouse = nrow(kinship))

## Arguments

Vg d by d genetic covariance matrix for the d phenotypes d by d error covariance matrix for the d phenotypes optional n by n kinship matrix. if NULL, Vg is not used. number of subjects

## Value

dn by dn covariance matrix