rings,prevR-method;
(ii) compute prevalence surface with kde,prevR-method;
(iii) compute the surface of rings radii with krige,ANY,prevR-method;
(iv) plot prevalence surface using prevR.colors.red and add rings radii as a contour plot.quick.prevR(object, N = Noptim(object), nb.cells = 100, cell.size = NULL,
weighted = NULL, plot.results = TRUE, return.results = FALSE,
return.plot = FALSE, legend.title = "%", cex = 0.7,
progression = TRUE)prevR.cell.size is defined).prev is a SpatialPixelsDataFrame containing the prevalence
surface; (ii) radius a SpatialPixelsDataFrame containing the
kriged surface of the rings radii; (iii) plot a ggplot graph.N determine the rings to use for the estimation.
By default, a suggested value of N will be computed with Noptim.Noptim, rings,prevR-method,
kde,prevR-method, krige,ANY,prevR-method.