managNAkasc {adehabitat} | R Documentation

## "Cleaning" Objects of Class 'kasc'

### Description

An object of class `kasc` stores several maps in a data frame (one column per variable, and one row per pixel of the raster map). However, the features mapped are rarely rectangle-shaped, whereas the map are inevitably rectangles. Therefore, a lot of pixels of the maps do not contain data. The pixels of the map that do not contain data are `NA` in this data frame.
It often occurs that several variables are not mapped for exactly the same area (that is, some pixels are `NA` for some variables, and not for others). `managNAkasc` will set to `NA` all pixels that are not mapped for all variables.

### Usage

    managNAkasc(x)

### Arguments

`x` | an object of class `kasc`

### Value

Returns an object of class `kasc`.

### Author(s)

Clément Calenge calenge@biomserv.univ-lyon1.fr

### See Also

`as.kasc` for additional information on objects of class `kasc`.

[Package adehabitat version 1.3 Index]