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cases
2009 Aug 18
0
kernel density estimation for univariate data using splancs
...to copy the example provided in the help file but cannot produce the same results for my data. I've pasted my code below and I am not sure how to define the grd1 (cellsize and cells.dim). Here is my code:
coords <- S at polygons[[1]]@Polygons[[1]]@coords
coord <- as.points(coords)
cases1.xy <- as.points(mergedis$jit.x.x, mergedis$pre.fsa.shp.Y2)
grd1 <- GridTopology(cellcentre.offset=c(50281627.2, 580082), cellsize=c(0.2, 0.2), cells.dim=c(75,100))
k1000 <- spkernel2d(cases1.xy, coord, h0=1000, grd1)
k5000 <- spkernel2d(cases1.xy, coord, h0=5000, grd1)
if (.sp_lt_0.9())...