stretch {raster} | R Documentation |
Linear strech of values in a Raster object
stretch(x, minv=0, maxv=255, minq=0, maxq=1, filename='', ...)
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 |
Raster* object
stretch argument in plotRGB
r <- raster(nc=10, nr=10) r[] <- 1:100 * 10 stretch(r) s <- stack(r, r*2) stretch(s)