spplot

spplot(beta, "1")

Error in `[.data.frame`(as(obj, "data.frame"), zcol) :
        undefined columns selected

I can't seem to fix this. Version:       0.9-10


THK

Timothy H. Keitt, University of Texas at Austin
Contact info and schedule at http://www.keittlab.org/tkeitt/
Reprints at http://www.keittlab.org/tkeitt/papers/
ODF attachment? See http://www.openoffice.org/