R: Slope and aspect

Slope and aspect {raster} | R Documentation

## Slope and aspect

### Description

This is a deprecated function. Use `terrain` instead.

### Usage

    slopeAspect(dem, filename='', out=c('slope', 'aspect'), unit='radians',
                     neighbors=8, flatAspect, ...)

### Arguments

`dem` | RasterLayer object with elevation values in map units, or in meters when the crs is longitude/latitude
`filename` | Character. Filename. optional
`out` | Character vector containing one or more of these options: 'slope', 'aspect'
`unit` | Character. 'degrees' or 'radians'
`neighbors` | Integer. Indicating how many neighboring cells to use to compute slope for any cell. Either 8 (queen case) or 4 (rook case), see Details
`flatAspect` | Numeric or NA. What value to use for aspect when slope is zero (and hence the aspect is undefined)? The default value is 90 degrees (or 0.5*pi radians)
`...` | Standard additional arguments for writing RasterLayer files

### See Also

`terrain`

[Package raster version 2.6-7 Index]