\begin{Schunk}
\begin{Sinput}
 confint(mod1)
\end{Sinput}
\begin{Soutput}
                   2.5 %     97.5 %
(Intercept)   11.3895457 11.9867314
elevationP100 -0.3638196 -0.2837176
\end{Soutput}
\end{Schunk}
