Hi Debs. I do not think any of the statistical methods implemented in DCluster is suitable for the analysis of point processes in their current state. Some of them could be used with ppoint proesses (GAM, Spatial Scan), but the current implementation of the methods assumes areal data.
For the analysis of point processes you can check packages Splancs and Spatstat. In addition to Prof. Diggle's web site that someone else pointe out, you can check the website of the MsC Course in Environmental Epidemiology (Lancaster University): http://www.maths.lancs.ac.uk/department/study/years/msc/modules/math465 Hope this helps, Virgilio -----Original Message----- From: [EMAIL PROTECTED] on behalf of Debarchana Ghosh Sent: Thu 9/7/2006 10:56 PM To: r-sig-geo@stat.math.ethz.ch Subject: [R-sig-Geo] exact ponit location of dsease and clustering problem Hi, I have a data set with exact locations (x,y) of West Nile Virus positive birds and mosquitoes. From what I read and understood (hopefully) in the Dcluster package, the clustering methods requires the study area to be divided into small regions and use the centroids of those constructed regions. But in my case I have a study area and exact locations of 200 positive birds. I was wondering how to use the clustering methods mentioned in the Dcluster package to do a cluster analysis of disease data points. Also if I cannot use the clustering methods in the DCluster package, what other methods/packages should I check to do a point clustering analysis. Any help on this will be very much appreciated. Thanks, Debs. -- Debarchana Ghosh Research Assistant, Department of Geography University of Minnesota. PH: 8143607580 www.tc.umn.edu/~ghos0033/ [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
