setting up a spatial data frame

Hi Erin,

You should provide us with more information: with no lat / lon data, it is going
to be pretty difficult to turn your data frame into a Spatial Object... were the
data collected on a regular grid, is it somehow linked to a Spatial object that
could be imported into R? From the last columns, it seems to come from a
shapefile... Do you have this file ?

Indeed it looks like a erroneous Shapefile import; if you look at the last three 
variables, it seems the actual geometry ("Shape") has not been imported, while 
geometry's length and area have been:

 >> $ Shape : logi NA NA NA NA NA NA ...
 >> $ Shape_Length : num 16572 43119 39256 59785 75759 ...
 >> $ Shape_Area : num 1.30e+07 8.04e+07 7.55e+07 7.66e+07 2.30e+08 ...

Regards,

Luca Morandini
http://www.lucamorandini.it