R help - May 2010 - R algorithm/package for creating spatial autocorrelation of uniformly distributed landscape values

Dear all:

I would like to create a landscape of environmental values that follow a
uniform frequency distribution and also have spatial autocorrelation in the
landscape. I was wondering if there is an algorithm and/or package out there
that creates autocorrelation of values that are distributed according to a
non-normal frequency distribution.

Any suggestions are greatly appreciated.

Thank you,
Laura

-- 
" Genius is the summed production of the many with the names of the few
attached for easy recall, unfairly so to other scientists"

- E. O. Wilson (The Diversity of Life)

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On May 10, 2010, at 4:54 PM, Laura S wrote:
> Dear all:
>
> I would like to create a landscape of environmental values that  
> follow a
> uniform frequency distribution and also have spatial autocorrelation  
> in the
> landscape.
Perhaps:
X <- distribution on one dimension
Y <- distribution on another dimension
cY <- rho*X +(1-rho)*Y

> I was wondering if there is an algorithm and/or package out there
> that creates autocorrelation of values that are distributed  
> according to a
> non-normal frequency distribution.
There are several packages with the letters "distr" as a substring.  
And there is also at least one package that will assist in creating  
copulas.
>
> Any suggestions are greatly appreciated.
>
> Thank you,
> Laura
>
> -- 
> " Genius is the summed production of the many with the names of the  
> few
> attached for easy recall, unfairly so to other scientists"
>
> - E. O. Wilson (The Diversity of Life)
>
> 	[[alternative HTML version deleted]]
>
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David Winsemius, MD
West Hartford, CT