geo_index_all: Compute All Eligible Spectral Indices Automatically

In GeoIndexR: Computation of Spectral and Geospatial Indices from Multispectral Raster Data

Compute All Eligible Spectral Indices Automatically

Description

Automatically detects which spectral indices can be computed given the available bands in a terra::SpatRaster image (or raster file path) and calculates all of them.

Usage

geo_index_all(
  image,
  bands = NULL,
  scale_factor = NULL,
  sensor = NULL,
  quiet = FALSE,
  ...
)

Arguments

image	A terra::SpatRaster object or raster file path containing multispectral bands.
bands	Optional named vector or list specifying custom band mapping.
scale_factor	Optional numeric scaling divisor (e.g. 10000).
sensor	Optional character string specifying a sensor preset.
quiet	Logical. If FALSE (default), outputs an informative message listing which indices were detected and computed.
...	Additional parameters passed to index calculation functions.

Value

A multi-layer terra::SpatRaster containing all computable indices as individual layers.

Examples

img <- get_example_data()

# Compute all supported indices compatible with img bands
all_idx <- geo_index_all(img)
names(all_idx)

GeoIndexR documentation built on Oct. 10, 2026, 5:08 p.m.