sahrlocs2kselect {adehabitat} | R Documentation

## Preparation of K-Select Analysis

### Description

`sahrlocs2kselect` converts an object of class sahrlocs into a list that contains the arguments needed for a kselect analysis (see `help(kselect)`).

### Usage

    sahrlocs2kselect(sahr)

### Arguments

`sahr` | an object of class `sahrlocs`

### Value

Returns a list with the following components:

`tab` | a data frame giving the habitat composition of the home range of animals
`factor` | a factor giving for each row of `tab` the name of the corresponding animal
`weight` | a numeric vector giving for each row of `tab` the number of relocations numbered in this cell of the raster map

### Author(s)

Clément Calenge calenge@biomserv.univ-lyon1.fr

### References

Calenge, C., Dufour, A.B. and Maillard, D. (submitted). K-select analysis, a new method to analyse habitat selection in radio-tracking studies.

### See Also

`as.sahrlocs` for additional information on the objects of class `sahrlocs`, `kselect` for a K-select analysis, and `kasc2df` for additional information on the index component of the output.

### Examples

    data(puechabon)
    sahr <- puechabon$sahr
    s <- sahrlocs2kselect(sahr)

    # 1. PCA of the dataset
    pc <- dudi.mix(s$tab, scannf = FALSE)

    # 2. k-select analysis
    kn <- kselect(pc, s$factor, s$weight, scannf = FALSE)

    scatter(kn)

[Package adehabitat version 1.3 Index]