one_point_per_pixel: Spatial Correction - One point per pixel

In gatoRs: Geographic and Taxonomic Occurrence R-Based Scrubbing

Spatial Correction - One point per pixel

Description

The one_point_per_pixel function retains only one point per raster pixel. This function is useful when creating present-absent models.

Usage

one_point_per_pixel(
  df,
  raster = NA,
  resolution = 0.5,
  precision = TRUE,
  digits = 2,
  longitude = "longitude",
  latitude = "latitude"
)

Arguments

df	Data frame of occurrence records.
raster	Raster object which will be used for ecological niche comparisons. A SpatRaster should be used.
resolution	Default = 0.5. Options - 0.5, 2.5, 5, and 10 (in min of a degree). 0.5 min of a degree is equal to 30 arc sec.
precision	Default = TRUE. Indicates that coordinates should be rounded to match the coordinate uncertainty.
digits	Default = 2. Indicates digits to round coordinates to when precision = TRUE.
longitude	Default = "longitude". The name of the longitude column in the data frame.
latitude	Default = "latitude". The name of the latitude column in the data frame.

Details

This function requires package raster and spatstat.geom.

Value

df is a data frame with only one point per pixel. Information about the columns in the returned data frame can be found in the documentation for gators_download().

Examples

ready_data <- one_point_per_pixel(data)

gatoRs documentation built on May 29, 2024, 7:11 a.m.