[R-sig-Geo] Comparing spatial point patterns - Syrjala test

[jiho]

On 2008-February-10  , at 23:35 , Jan Theodore Galkowski wrote:
> There is this,
>
>  "Analysis of Variance for Replicated Spatial Point Patterns in
>  Clinical Neuroanatomy",
>  PETER J DIGGLE, NICHOLAS LANGE, and FRANCINE M BENES, September 1991
>  JASA,
>  Vol 86, No 415, pp 618 625


Thank you very much for this reference. However the problem it is  
dealing with is not really similar to the one I target. In this paper  
the authors assess the differences in positions of neurones in a 2D  
plane between three groups of patients, with replicates in each group.  
So the data of interest are the coordinates.
In my case, the positions of sampling stations are fixed (and on a  
grid if that helps [1]) and I want to assess the differences in  
abundances of two groups at these positions. So the data of interest  
are the abundances (normalized to remove the effect of total  
population sizes), and more specifically, the way the abundances are  
distributed on these points. Maybe the subject of this email is not  
correctly stated then. I am not a native english speaker and when it  
comes to technical terms, it is even worse.

Anyhow, I hope this email clarifies things.

[1] http://jo.irisson.free.fr/work/research/far.png

Jean-Olivier Irisson
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http://jo.irisson.free.fr/work/