R: Stretch

stretch {raster} | R Documentation

## Stretch

### Description

Linear strech of values in a Raster object

### Usage

    stretch(x, minv=0, maxv=255, minq=0, maxq=1, filename='', ...)

### Arguments

`x` | Raster* object
`minv` | numeric >= 0 and smaller than maxv. lower bound of streched value
`maxv` | numeric <= 255 and larger than maxv. upper bound of streched value
`minq` | numeric >= 0 and smaller than maxq. lower quitile bound of original value
`maxq` | numeric <= 1 and larger than minq. upper quitile bound of original value
`filename` | character. Filename for the output Raster object (optional)
`...` | additional arguments as for `writeRaster`

### Value

Raster* object

### See Also

stretch argument in `plotRGB`

### Examples

    r <- raster(nc=10, nr=10)
    r[] <- 1:100 * 10
    stretch(r)
    s <- stack(r, r*2)
    stretch(s)

[Package raster version 2.6-7 Index]