\begin{Schunk}
\begin{Soutput}
  region           x        diff
1      C -0.02983546 -0.10541707
2      M  0.28677120  0.21118959
3      N  0.13556488  0.05998327
4      S  0.16496487  0.08938326
5     SA -0.17955745 -0.25513905
\end{Soutput}
\end{Schunk}
