R: Incandescent "FEL" lamp emission spectrum

FEL_spectrum {photobiology} | R Documentation

## Incandescent "FEL" lamp emission spectrum

### Description

Calculate values by means of a nth degree polynomial from user-supplied constants (for example from a lamp calibration certificate).

### Usage

    FEL_spectrum(w.length, k = photobiology::FEL.BN.9101.165, fill = NA_real_)

### Arguments

`w.length` | numeric vector of wavelengths (nm) for output
`k` | a numeric vector with n constants for the function
`fill` | if NA, no extrapolation is done, and NA is returned for wavelengths outside the range 250 nm to 900 nm. If NULL then the tails are deleted. If 0 then the tails are set to zero, etc. NA is default.

### Value

a dataframe with four numeric vectors with wavelength values (w.length), energy and photon irradiance (s.e.irrad, s.q.irrad) depending on the argument passed to unit.out (s.irrad).

### Note

This is function is valid for wavelengths in the range 250 nm to 900 nm, for wavelengths outside this range NAs are returned.

### Examples

    FEL_spectrum(400)
    FEL_spectrum(250:900)

[Package photobiology version 0.9.21 Index]