Resamples a set of points with x and y coordinates to impose a minimum distance among nearby points.

thinning(xy, minimum.distance = NULL)

Arguments

xy

A data frame with columns named "x" and "y" representing geographic coordinates.

minimum.distance

Numeric, minimum distance to be set between nearby points, in the same units as the coordinates of xy.

Value

A data frame with the same columns as xy with points separated by the defined minimum distance.

Details

Generally used to remove redundant points that could produce pseudo-replication, and to limit sampling bias by disaggregating clusters of points.

See also

Examples

if(interactive()){ #load example data data(plant_richness_df) #thinning to points separated by 5 degrees plant_richness.thin <- thinning( x = plant_richness_df, minimum.distance = 5 #points separated by at least 5 degrees ) plant_richness.thin }