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Dear List, I am looking for examples of how to simulate a bivariate pairwise interaction point process. The only multivariate (type) model I can find is the poisson multitype pattern in Spatstat. The Strauss process can give me interaction point...
Dear List, I am creating a raster as the output of a function, and for testing purposes the output of this function should be a raster with all 1's. When I check with summary, this is the case: class...
Hi Rolf, Thanks for your reply. Yes I think the multitype Strauss model is what I was looking for, with parameters (gammas) for interaction in component 1, 2 and between 1 & 2, which I believe is the gamma matrix parameter...
Dear List, I am trying to manipulate polygons that are the component pieces that result from the gDifference function. > spdf1 = readShapePoly(paste(pathToDropbox, "spatiallab/hschange/hs99.shp", sep="")) #rgdal wouldnt insstall > spdf2 = readShapePoly(paste(pathToDropbox, "spatiallab/hschange/hs00.shp", sep...
Thanks Barry, that was it. Colin On Wed, Jun 29, 2011 at 12:13 PM, Barry Rowlingson <b.rowlingson at lancaster.ac.uk> wrote: > On Wed, Jun 29, 2011 at 4:50 PM, Colin Robertson <colinr23 at gmail.com> wrote...
Roger and Colin, Thanks very much for this. Roger you second method seems to get me just about there, although I did notice one instance of one 'multi-part' polygon in the output. Where two parts of one input polygon...
Hi Duncan, For calculating the distance between polygons, there are descriptions of the calculations for average distance and minimum distance in the reference below. Although I'm not sure if they're implemented in any R packages. Okabe, A. and...
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