spplot AQuadtree-method
Method spplot
## S4 method for signature 'AQuadtree' spplot(obj, zcol = NULL, by.density = TRUE, residual = TRUE, ...)
| obj | an object of class AQuadtree. | 
| zcol | character; attribute name(s) or column number(s) in attribute table | 
| by.density | logical; if TRUE cell values specified in zcol are divided by cell areas | 
| residual | logical; if TRUE cells marked as residual cells are included | 
| ... | passed through. | 
Plots a AQuadtree object as a spatial object with its data
Creates a lattice plot of class "trellis" created with the spplot method in the sp package
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