subset_by_coordinate_ref: Subset Occurrence Dataframe

In DivInsight: Diversity Index Calculation & Visualisation for Taxa and Location

Subset Occurrence Dataframe

Description

Subsets an occurrence dataframe by using a pair of reference coordinates and a radius distance.

Usage

subset_by_coordinate_ref(dataframe, coordinate_reference, distance_threshold)

Arguments

dataframe	A dataframe from which occurrence data will be subset
coordinate_reference	A pair of longitude/latitude coordinates that will mark the centre of the occurrence data
distance_threshold	The distance from the coordinate reference that will be included in the subset

Value

A dataframe with observations that occurred within the distance threshold from the coordinate reference

Examples

# subset the occurrence data returning only data points 50km from the reference coordinates
Colombia_site_1 <-  subset_by_coordinate_ref(

 dataframe = Colombia,
 coordinate_reference = c(-74.083310, 7.488485),
 distance_threshold = 50000

)

head(Colombia_site_1)

DivInsight documentation built on Aug. 12, 2023, 9:06 a.m.