wl.eval: Evaluate function on wavelengths of hyperSpec object

In hyperSpec: Work with Hyperspectral Data, i.e. Spectra + Meta Information (Spatial, Time, Concentration, ...)

Description

This is useful for generating certain types of baseline "reference spectra".

Usage

wl.eval(x, ..., normalize.wl = I)

Arguments

x	hyperSpec object
...	hyperSpec method: expressions to be evaluated
normalize.wl	function to transorm the wavelengths before evaluating the polynomial (or other function). Use normalize01 to map the wavelength range to the interval [0, 1].

Value

hyperSpec object containing one spectrum for each expression

Author(s)

C. Beleites

See Also

vanderMonde for polynomials,

normalize01 to normalize the wavenumbers before evaluating the function

Examples

plot (wl.eval (laser, exp = function (x) exp (-x)))

Example output

Loading required package: lattice
Loading required package: grid
Loading required package: ggplot2
Loading required package: xml2
Package hyperSpec, version 0.99-20200527

To get started, try
   vignette ("hyperspec")
   package?hyperSpec 
   vignette (package = "hyperSpec")

If you use this package please cite it appropriately.
   citation("hyperSpec")
will give you the correct reference.

The project homepage is http://hyperspec.r-forge.r-project.org

hyperSpec documentation built on Sept. 13, 2021, 5:09 p.m.