strech: Stretch

In miraisolutions/raster: Geographic Data Analysis and Modeling

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)

miraisolutions/raster documentation built on May 30, 2019, 11:41 p.m.