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Find position of selected wavelengths

Source: R/utils.R
wavelength_position.Rd

Find band index positions by matching requested wavelengths to the nearest available band. When multiple requested wavelengths resolve to the same band index, only the last is retained.

Usage

wavelength_position(x, wavelength)

Arguments

x

A SpatRaster with hyperspectral data.

wavelength

Numeric vector. Desired wavelengths in nm.

Value

A tibble with columns:

wavelength

Numeric. Requested wavelength in nm.

position

Integer. Corresponding band index in x.

band_wavelength

Numeric. Actual wavelength of the matched band in nm.

See also

Other Utilities: hsi_bind_rows(), hsi_find_extent(), hsi_subset(), hsi_subset_range()

Examples

if (FALSE) { # \dontrun{
r <- terra::rast(nrows = 10, ncols = 10, nlyrs = 5)
names(r) <- c("400", "500", "600", "700", "800")

wavelength_position(r, c(450, 650))
} # }