getascattr: Copy the Attributes of an Object of Class 'asc' or 'kasc' to...

In adehabitat: Analysis of Habitat Selection by Animals

Description

getascattr copies the attributes of an object of class asc to another matrix of the same size.
getkascattr performs the same operation for objects of class kasc.

Usage

getascattr(xfrom, xto, type = c("numeric", "factor"), lev = NULL)
getkascattr(xkfrom, xkto)

Arguments

xfrom	an object of class asc
xto	a matrix with the same number of rows and columns as xfrom
type	a character string giving the type of the map ("factor" for maps of categorical variables, and "numeric" otherwise)
lev	if type = "factor", a character vector giving the levels of the mapped variable (see help(asc))
xkfrom	an object of class kasc
xkto	a data frame with the same number of rows and columns as xkfrom

Value

getascattr returns a raster matrix of class asc,
getkascattr returns a data frame of class kasc

Author(s)

Clement Calenge [e-mail]

See Also

kasc for additionnal information on objects of class kasc, asc for additionnal information on objects of class asc

Examples

data(puechabon)

## my.map is a map of elevation
my.map <- getkasc(puechabon$kasc, "Elevation")
sl <- getkasc(puechabon$kasc, "Slope")
attributes(sl) <- NULL
sl <- matrix(sl, ncol = ncol(my.map))

## sl is a matrix with the same size as my.map
toto <- getascattr(my.map, sl)
image(toto)

## Same rationale with aspect
asp <- getkasc(puechabon$kasc, "Aspect")
le <- levels(asp)
attributes(asp) <- NULL
asp <- matrix(asp, ncol = ncol(my.map))

## asp is now a matrix with the same size as my.map
tutu <- getascattr(my.map, asp, typ = "factor", lev = le)
cl <- colasc(tutu, NorthEast = "blue", SouthEast = "red", 
           SouthWest = "orange", NorthWest = "green")
image(tutu, clfac = cl)

adehabitat documentation built on Jan. 28, 2018, 5:02 p.m.