
Hi,
 
I would like to use the function "extract" from package raster and i get the following error:
 m01e <- extract(marsh01, p)
Error: could not find function "extract"
 
marsh01 is a raster object and p is an intersectExtent object that is not null.

The package is installed and loaded, i use a Windows machine 64 bit and R x64 2.11.0. Do i really need to update my R to use this function?
 
Thanks, Monica 		 	   		  
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