matrix alpha
    137.2021     60.6572    148.2204    147.7027    -12.6093     90.9625
     60.6572    500.8828    366.9686    448.3022    287.4484    257.7019
    148.2204    366.9686    583.6553    659.6396    553.0109    612.6782
    147.7027    448.3022    659.6396    971.0057   1131.7701   1410.9380
    -12.6093    287.4484    553.0109   1131.7701   1911.5935   2409.3484
     90.9625    257.7019    612.6782   1410.9380   2409.3484   3341.0002
vector beta
    -24.7629   -118.2998    -76.5074   -124.1268   -104.8776   -145.4018
chi-squared:     147.9271

matrix alpha
    971.0057   1131.7701   1410.9380
   1131.7701   1911.5935   2409.3484
   1410.9380   2409.3484   3341.0002
vector beta
   -124.1268   -104.8776   -145.4018
chi-squared:     147.9271