\begin{Schunk}
\begin{Sinput}
 library(rockchalk)
 summarize(dat)
\end{Sinput}
\begin{Soutput}
$numerics
     elevation latitude longitude   tann
0%        2.00   42.050  -124.600  3.200
25%      94.25   43.600  -123.200  8.700
50%     462.00   44.460  -121.700 10.400
75%     863.80   45.280  -119.600 11.200
100%   1974.00   46.150  -117.000 12.600
mean    557.00   44.320  -121.300  9.885
sd      498.30    1.116     2.278  1.874
var  248300.00    1.245     5.191  3.511
NA's      0.00    0.000     0.000  0.000
N        92.00   92.000    92.000 92.000

$factors
          station      
 ANT          : 1.000  
 ARL          : 1.000  
 ASH          : 1.000  
 AST          : 1.000  
 (All Others) :88.000  
 NA's         : 0.000  
 entropy      : 6.524  
 normedEntropy: 1.000  
 N            :92.000  
\end{Soutput}
\end{Schunk}
