[R-sig-Geo] How to rescale a raster in R?

[Edzer Pebesma]

require(raster)
r = raster()
r[] = rnorm(180*360)
plot((r-cellStats(r,"min"))/(cellStats(r,"max")-cellStats(r,"min")))

raster::scale, like base::scale, centers to mean zero and scales to unit
variance.

On 03/23/2014 06:40 PM, Manuel Spínola wrote:
> Dear list members,
> 
> I want to rescale a raster between 0 and 1, how can I do that in R?
> 
> I know that there is a scale function in the raster package, but I don´t
> know how to use it for rescaling.
> 
> Best,
> 
> Manuel
> 
> 
> 
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-- 
Edzer Pebesma
Institute for Geoinformatics (ifgi), University of Münster
Heisenbergstraße 2, 48149 Münster, Germany. Phone: +49 251
83 33081 http://ifgi.uni-muenster.de GPG key ID 0xAC227795

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