y = bilorz(p, x, [y]) : Bi-Lorentzian
iFunc/bilorz Bi-Lorentzian fitting function
y = p(1)*exp(-0.5*((x-p(2))/s).^2) + p(5);
where s = p(3) for x < p(2) and s = p(4) for x > p(2).
bilorz([ w1 w2]) creates a model with specified widths
bilorz([ parameters ]) creates a model with specified model parameters
input: p: Bi-Lorentzian model parameters (double)
p = [ Amplitude Centre HalfWidth1 HalfWidth2 BackGround ]
or 'guess'
x: axis (double)
y: when values are given and p='guess', a guess of the parameters is performed (double)
output: y: model value
ex: y=bilorz([1 0 1 1], -10:10); or plot(bilorz)
Version: Aug. 22, 2017
See also iFunc, iFunc/fits, iFunc/plot
(c) E.Farhi, ILL. License: EUPL.