inlabru (version 2.1.9)

point2count: Convert a plot sample of points into one of counts.

Description

Converts a plot sample with locations of each point within each plot, into a plot sample with only the count within each plot.

Usage

point2count(plots, dets)

Arguments

plots

A SpatialPolygonsDataFrame object containing the plots that were sampled.

dets

A SpatialPointsDataFrame object containing the locations of the points within the plots.

Value

A SpatialPolygonsDataFrame with counts in each plot contained in slot @data$n.

Examples

# NOT RUN {
# Some features require the raster package
if (require("raster", quietly = TRUE)) {

data(gorillas, package = "inlabru")
plotpts = plotsample(gorillas$nests,gorillas$boundary,x.ppn=0.4,y.ppn=0.4,nx=5,ny=5)
p1 = ggplot() +gg(plotpts$plots) +gg(plotpts$dets) +gg(gorillas$boundary)
countdata = point2count(plotpts$plots,plotpts$dets)
x=coordinates(countdata)[,1]
y=coordinates(countdata)[,2]
count=countdata@data$n
p2 = ggplot() +gg(gorillas$boundary) +gg(plotpts$plots) +  geom_text(aes(label=count, x=x, y=y))
multiplot(p1,p2,cols=2)

}
# }
# NOT RUN {
# }