\begin{Schunk}
\begin{Sinput}
 mAndM$fit <- predict(m1, newdata=mAndM)
 head(mAndM, 10)
\end{Sinput}
\begin{Soutput}
      x1    x2      fit
1  19.42 19.51 10.49937
2  43.37 19.51 12.85724
3  50.50 19.51 13.55919
4  56.85 19.51 14.18435
5  85.02 19.51 16.95768
6  19.42 43.35 13.41103
7  43.37 43.35 17.41607
8  50.50 43.35 18.60838
9  56.85 43.35 19.67026
10 85.02 43.35 24.38099
\end{Soutput}
\end{Schunk}
