nag_correg_robustm_user_varmat (g02hfc) Example Program Data 5 3 : N M 1.0 -1.0 -1.0 : X1 X2 X3 1.0 -1.0 1.0 1.0 1.0 -1.0 1.0 1.0 1.0 1.0 0.0 3.0 : End of X1 X2 and X3 values 20.7783 : SIGMA 0.4039 0.5643 : Weights and residuals, WGT and RS 0.5012 -1.1286 0.4039 0.5643 0.5012 -1.1286 0.3862 1.1286 : End of weights and residuals