ctmm: export – R documentation

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ctmm

export

Export ctmm data formats

Description

Functions to export ctmm data formats into common sp, raster, and ESRI formats.

Usage

## S4 method for signature 'UD'
raster(x,DF="CDF",...)

SpatialPoints.telemetry(object,...)

SpatialPointsDataFrame.telemetry(object,...)

SpatialPolygonsDataFrame.telemetry(object,level.UD=0.95,...)

SpatialPolygonsDataFrame.UD(object,level.UD=0.95,level=0.95,...)

## S4 method for signature 'UD,character'
writeRaster(x,filename,format,DF="CDF",...)

writeShapefile(object,folder,file=NULL,...)

## S3 method for class 'telemetry'
writeShapefile(object,folder,file=NULL,error=TRUE,level.UD=0.95,...)

## S3 method for class 'UD'
writeShapefile(object,folder,file=NULL,level.UD=0.95,level=0.95,...)

Arguments

`x`	`UD` object.
`DF`	Rasterize the probability density function `"PDF"`, probability mass function `"PMF"`, or cumulative distribution function `"CDF"`.
`object`	`telemetry` or `UD` object.

`level.UD`	Coverage level of the UD area. I.e., the 50% core home range would be given by `level.UD=0.50`.
`level`	Confidence level for the magnitude of the above area. I.e., the 95% CI of the core home range area.
`filename`	Character name of file for raster file.
`format`	Character format, if not inferred from `filename` extension (see `writeRaster`.)
`folder`	Character name of folder for shapefile.
`file`	Character name of files for shapefile.
`error`	Export error circles/ellipses as polygons if `TRUE`.
`...`	Optional arguments passed to `writeRaster`, `writeOGR`, etc..

Details

writeRaster writes a raster file to disk, with pixel values corresponding to the density function.

writeShapefile writes a shapefile to disk, with UD polygons corresponding to the low-CI, point-estimate, and high-CI home-range area estimates.

Value

raster returns a raster of the point-estimate distribution function DF, given a UD object. DF="PDF" gives the average probability density per cell, DF="PMF" gives the total probability per cell, and DF="CDF" gives the cumulative probability.

SpatialPoints.telemetry returns a single spatialPoints object for the x-y locations, with individual identity information lost.

SpatialPointsDataFrame.telemetry returns a SpatialPointsDataFrame with the individual identities recorded in the data frame.

SpatialPolygonsDataFrame.telemetry returns a SpatialPolygonsDataFrame that encodes the location estimate's error circles/ellipses.

SpatialPolygonsDataFrame.UD returns a SpatialPolygonsDataFrame of the low-CI, point-estimate, and high-CI home-range area estimates, in the appropriate order for plotting.

Author(s)

C. H. Fleming and K. Safi.