[R-sig-Geo] Help on extracting min/max from raster object

[Robert Hijmans]

Rahul,

> > > I wanted to extract the min value and max value from 
> > the object. How can I 
> > > do this? 
> > > I have used the following function for this purpose 
> > > > cellStats(r,'min') 
> > > [1] 0 
> > > 
> > > But it is returning 0, not "0.001407638" 

The combination of 

minValue(r)
[1] 0.001407638
> cellStats(r, min) 
[1] 0 

Suggests to me that the minimum value reported by the file is incorrect. 

You may first want to do:

r <- setMinMax(r)
# this should be TRUE
minValue(r) == cellStats(r, min)

Robert

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