y = heaviside(p, x, [y]) : Heaviside step function iFunc/heaviside Heaviside step fitting function y = 0*x+p(4); y(find(x >= p(2))) = p(1); The Width parameter sign indicates if this is a raising (positive) or falling (negative) Heaviside. heaviside(threshold) creates a model with a specified threshold heaviside([ parameters ]) creates a model with specified model parameters input: p: Heaviside model parameters (double) p = [ Amplitude Centre FullWidth 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=heaviside([1 0 1 1], -10:10); or plot(heaviside); Version: Nov. 26, 2018 See also iFunc, iFunc/fits, iFunc/plot (c) E.Farhi, ILL. License: EUPL.