[R] j and jcross queries

From: Robert Biddle <robert_biddle_at_carleton.ca>
Date: Sun, 10 Feb 2008 19:37:40 -0500


Hi:

I have a query related to the J and Jcross functions in the SpatStat package.

I use J to finding indications of clustering in my data, and Jcross to look for dependence between point patterns.

I use the envelope function to do Monte Carlo tests to look for significance.

So far so good.

My question is how I can test to see if tests are significantly different.

For example, if find J of pattern X and J of pattern Y, how could I determine
the liklihood that those results come from different processes?

Similarly, if I find J of marks X and Y, and X and Z, how could I determine the liklihood
that Y and Z come from different processes?

I would appreciate advice.

Cheers

Robert Biddle



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