Hello in geoR package there is a function called grf()
According to the geoR short manual grf() takes the following arguments



	* n number of points (spatial locations) in each simulations.
	* grid optional. An n × 2 matrix with coordinates of the simulated data.
	* nx optional. Number of points in the X direction.
	* ny optional. Number of points in the Y direction.

What I want to create is a matrix (at least this is a matlab in matrix) that 
contains values created from grf(). The array is of dimensions x*y so the grf() 
needs to create a x*y map.

If you see the parameters again you will notice that there is a n (n number of 
points) and nx and ny also.

If I put nx=400 and ny=200 (this is just an example) the grf() will return 
values for 400 cells (for some reason picks the highest values of nx and ny). If 
I try something like n=x*y I get the message that the RandomField package must 
be used. Really do you what the parameter n is about (number of points))?

I would like to thank you in advance for your help
Alex



      
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