Table 1 The general form of covariance matrices for the G × discrete E parameterization
Subject i smokes | Subject j smokes | Covariance Matrix |
|---|---|---|
1 | 1 | Ω = 2 Φ σ2xg + I σ2xe |
0 | 0 | Ω = 2 Φ σ2yg + I σ2ye |
1 | 0 | Ω = 2 Φ σxg σyg ρg + I σxe σye |
Subject i smokes | Subject j smokes | Covariance Matrix |
|---|---|---|
1 | 1 | Ω = 2 Φ σ2xg + I σ2xe |
0 | 0 | Ω = 2 Φ σ2yg + I σ2ye |
1 | 0 | Ω = 2 Φ σxg σyg ρg + I σxe σye |