Fortify method for classes from the sp package.

Usage

"fortify"(model, data, region = NULL, ...)
"fortify"(model, data, ...)
"fortify"(model, data, ...)
"fortify"(model, data, ...)
"fortify"(model, data, ...)
"fortify"(model, data, ...)
"fortify"(model, data, ...)

Arguments

model
SpatialPolygonsDataFrame to convert into a dataframe.
data
not used by this method
region
name of variable used to split up regions
...
not used by this method

Description

To figure out the correct variable name for region, inspect as.data.frame(model).

Examples

if (require("maptools")) { sids <- system.file("shapes/sids.shp", package="maptools") nc1 <- readShapePoly(sids, proj4string = CRS("+proj=longlat +datum=NAD27")) nc1_df <- fortify(nc1) }
Loading required package: maptools Warning message: there is no package called ‘maptools’