**Next message:**Stéphane Boyer: "ACC - projection des variables"**Previous message:**Maria D. Tchakerian: "k-function -overlapping triangles"**Maybe in reply to:**Maria D. Tchakerian: "k-function -overlapping triangles"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]

Dear Colleague,

This message normally occurs when the triangles used to define the exclusion

zone overlap, which causes problems in the computation of the edge effect

correction.

A way to find which triangle creates this error could be to make the

computation first with no triangles (initial rectangle only), and then with

one triangle only, then two triangles, etc... You could then check how the

corresponding triangle is overlapping the other ones, and correct the

co-ordinates.

I hope this will help you to solve this problem.

Sincerely yours,

-------------------------------------------------------

François Goreaud

CEMAGREF, LISC

24 avenue des Landais - BP 50085

63172 AUBIERE CEDEX 1 - France

Tel. : 33 (0)4.73.44.06.80

Fax : 33 (0)4.73.44.06.96

email : francois.goreaud@clermont.cemagref.fr

-------------------------------------------------------

*> ----------
*

*> De : Maria D. Tchakerian[SMTP:melos@geog.tamu.edu]
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*> Date : lundi 24 février 2003 18:45
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*> A : adelist@biomserv.univ-lyon1.fr
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*> Objet : k-function -overlapping triangles
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*>
*

*>
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*> I am using the ADE4 package to analyze the distribution of honey bees in
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*> Tucson Arizona. Our dataset goes from 1995 to 2001. I have an irregular
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*> polygon and I have followed all the instructions in Thema 8.0 to create
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*> the triangulate polygon (outside my polygon of interest). I was able to
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*> run the k function for 1995 and 1996, but then I started getting an error
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*> message "error: overlapping triangles" for the rest of the years. I have
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*> tried several options but nothing seems to work. Would you please help me
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*> to figure out what can I do about this problem???
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*>
*

*> Thanks
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*>
*

*>
*

*> Maria D. Tchakerian
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*> Research Associate
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*> Knowledge Engineering Laboratory
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*> Department of Entomology
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*> Texas A&M University
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*> College Station, TX 77843-2475
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*>
*

*> Phone (979) 845-8622
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*> FAX (979) 862-4820
*

*>
*

*>
*

*>
*

**Next message:**Stéphane Boyer: "ACC - projection des variables"**Previous message:**Maria D. Tchakerian: "k-function -overlapping triangles"**Maybe in reply to:**Maria D. Tchakerian: "k-function -overlapping triangles"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]

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