Fortify method for classes from the sp package.

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Description

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

Usage

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## S3 method for class 'SpatialPolygonsDataFrame'
fortify(model, data, region = NULL, ...)

## S3 method for class 'SpatialPolygons'
fortify(model, data, ...)

## S3 method for class 'Polygons'
fortify(model, data, ...)

## S3 method for class 'Polygon'
fortify(model, data, ...)

## S3 method for class 'SpatialLinesDataFrame'
fortify(model, data, ...)

## S3 method for class 'Lines'
fortify(model, data, ...)

## S3 method for class 'Line'
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

Examples

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if (require("maptools")) {
 sids <- system.file("shapes/sids.shp", package="maptools")
 nc1 <- readShapePoly(sids,
   proj4string = CRS("+proj=longlat +datum=NAD27"))
 nc1_df <- fortify(nc1)
}

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