R: Swiss landscape data

Switzerland {unmarked} | R Documentation

## Swiss landscape data

### Description

Spatially-referenced data on elevation, forest cover, and water at a 1km-sq resolution.

### Usage

    data(Switzerland)

### Format

A data frame with 42275 observations on the following 5 variables.

`x`

  Easting (m)

`y`

  Northing (m)

`elevation`

  a numeric vector (m)

`forest`

  a numeric vector (percent cover)

`water`

  a numeric vector (percent cover)

### Details

Forest and water coverage (in percent area) was computed using the 1992-97 landcover dataset of the Swiss Federal Statistical Office (http://www.bfs.admin.ch). Median elevation (in metres) was computed using a median aggregation of the digital elevation model of the Swiss Federal Statistical Office.

x and y are the coordinates of the center of each 1km2 pixel.

The coordinate reference system intentionally not specified.

These data can only be used for non-profit projects. Otherwise, written permission must be obtained from the Swiss Federal Statistical Office

### Source

Swiss Federal Statistical Office (http://www.bfs.admin.ch)

### Examples

    data(Switzerland)
    str(Switzerland)

    levelplot(elevation ~ x + y, Switzerland, aspect="iso",
        col.regions=terrain.colors(100))

    ## Not run:
    library(raster)
    el.r <- rasterFromXYZ(Switzerland[,c("x","y","elevation")], crs =
    "+proj=somerc +lat_0=46.95240555555556 +lon_0=7.439583333333333
    +k_0=1 +x_0=600000 +y_0=200000 +ellps=bessel
    +towgs84=674.374,15.056,405.346,0,0,0,0 +units=m +no_defs")
    plot(el.r)
    spplot(el.r)

    ## End(Not run)

[Package unmarked version 1.0.0 Index]