Description Usage Arguments Examples
View source: R/convex_richness.R
It creates a convex hull around observation records and sets the area inside as '1' (species is present)#' It will then find the nearest non-NA cell and extend the raster so that no observation records sit on NA pixels. It sets all areas outside of the convex hull as '0' (species absent). The resulting raster images can be subsequently stacked and summed.
1 | convex_richness(raster, observation.points)
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raster |
Raster which will be extended |
xy |
xy coordinates specifying cell centroids. Ensure that column headings are lower case and labelled as longitude/latitude or lat/long or xy. |
output.table |
Logical. If output.table=TRUE then a data.frame will be displayed instead of a raster. If output.table=FALSE then an extended raster will be displayed. Default is output.table=FALSE |
fact |
Integer. This argument disaggregates raster* (i.e. increases the reshighres.split<-split.raster(raster=global_climate[[1]], ppside = 10, save = TRUE, plot=FALSE, raster.name="highres_split_") |
only.na |
Logical. If TRUE, the function will only calculate new values for NA cells. When TRUE, processing time is greatly reduced. |
1 | Coming soon.
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