Computes the spectral derivative using Savitzky-Golay differentiation.
Shorthand for hs_smooth() with deriv > 0.
Arguments
- cube
An hsi_cube object.
- order
Integer. Derivative order. Default
1.- window
Integer (odd). SG window size. Default
5.
Value
An hsi_cube object with derivative spectra.
Examples
cube <- hs_example_cube()
d1 <- hs_derivative(cube, order = 1)