This function calculates the area of integer categories in a primary raster (r1). It can optionally compute an overlay area with a second layer (r2) and/or perform calculations within distinct zones defined by a polygon SpatVector.
Usage
area.calc.flex(
r1,
r2_raster = NULL,
r2_vector = NULL,
threshold = NULL,
zonal_polys = NULL,
id_col = NULL,
add_cols = NULL,
omit_zero = TRUE,
unit = "km"
)Arguments
- r1
The primary SpatRaster with integer categories.
- r2_raster
An optional SpatRaster for overlay analysis.
- r2_vector
An optional SpatVector for overlay analysis.
- threshold
A numeric value required to binarize 'r2_raster' if it's continuous.
- zonal_polys
An optional SpatVector for zonal analysis.
- id_col
A string specifying the column in 'zonal_polys'.
- add_cols
An optional character vector of additional column names from 'zonal_polys'.
- omit_zero
A logical value. If TRUE (default), results for category = 0 are removed.
- unit
A string specifying the area unit ("km", "m", or "ha").