swfunc.voigtfwhm#

Syntax#

y = fitfun.voigtfwhm(x,p)

Description#

y = fitfun.voigtfwhm(x,p) calculates the voigt function. The width parameters define the FWHM value. The integral of the function is normalized assuming that \(dx = 1\). The conversion between different width:

  • gamma parameter of the Lorentzian \(\gamma = w_L/2\)

  • standard deviation of the Gaussian \(\sigma = w_G/\sqrt{8\cdot\ln(2)}\)

Input Arguments#

x

Input coordinates where the function will be calculated.

p

Parameters in a vector with elements [A x0 wG wL]:

  • A integral of the output assuming \(dx=1\) (for different \(dx\) multiply the amplitude with \(dx\) to keep the integral constant).

  • x0 peak center positions.

  • wG FWHM of the Gaussian component.

  • wL FWHM of the Lorentzian component.

See also#

swfunc.gauss | swfunc.gaussfwhm | swfunc.pvoigt

*[FWHM]: Full Width at Half Maximum