FITS OF HCV LOAD DATA BY 3-STEP GLS FOR DIFFERENT THETA VALUES 
 
Initial fit of model by OLS 
 
OLS estimate of beta 1.421831 1.284388 -0.1850593 

 
Estimate of sigma squared 29797148898 
Estimate of sigma 172618.5 
 
 
3-step GLS fit of model with power 0.5 
 
Estimate of beta at 1 iterations 1.419455 1.263665 -0.1822357 
Estimate of beta at 2 iterations 1.419546 1.264332 -0.1823144 
Estimate of beta at 3 iterations 1.419543 1.264311 -0.1823119 
Estimate of beta at 4 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 5 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 6 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 7 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 8 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 9 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 10 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 11 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 12 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 13 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 14 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 15 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 16 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 17 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 18 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 19 iterations 1.419543 1.264312 -0.182312 
Estimate of beta at 20 iterations 1.419543 1.264312 -0.182312 

 
Estimate of sigma squared 15913.24 
Estimate of sigma 126.1477 
 
 
3-step GLS fit of model with power 1 
 
Estimate of beta at 1 iterations 1.425236 1.280036 -0.1823489 
Estimate of beta at 2 iterations 1.425400 1.280757 -0.1823919 
Estimate of beta at 3 iterations 1.425401 1.280730 -0.1823873 
Estimate of beta at 4 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 5 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 6 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 7 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 8 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 9 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 10 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 11 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 12 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 13 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 14 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 15 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 16 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 17 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 18 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 19 iterations 1.425401 1.280732 -0.1823875 
Estimate of beta at 20 iterations 1.425401 1.280732 -0.1823875 

 
Estimate of sigma squared 0.01070570 
Estimate of sigma 0.1034684