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knitr::opts_chunk$set( collapse = TRUE, comment = "#>" )
With grid_filter()
you may filter occurrence records inside grid cells in order to keep only the record with the highest confidence level in each grid cell.
As example, we will filter the occ.class
in square grid cells of 0.5 decimal degree of side, which is the default grid cell size of grid_filter()
. You can provide the height and width of the grid cell in grid.resolution
argument, or provide a raster layer in argument r
from which the cell is used to filter occurrences.
# Load package and data library(naturaList) data("A.setosa") data("speciaLists") # classification occ.class <- classify_occ(A.setosa, speciaLists) # grid filtering occ.grid <- grid_filter(occ.class) dim(occ.grid) table(occ.grid$naturaList_levels)
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