gatoRs (version 1.0.0)

one_point_per_pixel: Spatial Correction - One point per pixel

Description

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

Usage

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

Value

df is a data frame with only one point per pixel.

Arguments

df

Data frame of occurrence records.

raster

Raster object which will be used for ecological niche comparisons.

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.

Examples

ready_data <- one_point_per_pixel(data)