y = tophat(p, x, [y]) : Top-Hat rectangular function
iFunc/tophat Top-Hat rectangle fitting function
y=0*x+p(4); y(find(p(2)-p(3) < x & x < p(2)+p(3))) = p(1);
and y is set to the background outside the full width.
tophat(width) creates a model with a specified width
tophat([ parameters ]) creates a model with specified model parameters
input: p: Top-Hat rectangular model parameters (double)
p = [ Amplitude Centre HalfWidth 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=tophat([1 0 1 1], -10:10); or plot(tophat);
Version: Aug. 22, 2017
See also iFunc, iFunc/fits, iFunc/plot, heavisde, triangl
(c) E.Farhi, ILL. License: EUPL.