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// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) ENPC
// Copyright (C) ????-2008 - INRIA
// Copyright (C) 2010 - DIGITEO - Allan CORNET
//
// This file is released under the 3-clause BSD license. See COPYING-BSD.
function [] = ExpT(n)
function [y]=Exp(m,n,lambda)
// lambda exp(-lambda x) x>=0
// ---------------------------
y=(-1/lambda)* log(rand(m,n,"uniform"));
endfunction
// lambda exp(-lambda x) x>=0
// ---------------------------
[lhs,rhs] = argn(0);
if rhs <= 0 ; n = 1000;end
lambda = 3;
y = Exp(1, n, lambda);
drawlater();
my_handle = scf(100001);
clf(my_handle, "reset");
demo_viewCode("exp.dem.sce");
histplot([0:0.1:10],y,[1,1],"051"," ",[0,0,5,3]);
deff("[y]=f(x)","y=lambda*exp(-lambda*x);");
x=[0:0.1:10]';
plot2d(x, f(x), 1, "000");
titre= _("Simulation of an exponential random variable");
xtitle(titre,_("Classes"),"N(C)/Nmax");
PolylineFillColorId = color(179,179,0);
current_axe = gca();
current_axe.title.font_size = 3;
current_axe.background = color(232,230,200);
current_axe.children(2).children.fill_mode = "on";
current_axe.children(2).children.background = PolylineFillColorId;
current_axe.grid = [-1 PolylineFillColorId];
legend([_("Simulation");_("Theory")]);
drawnow();
endfunction
ExpT();
clear ExpT;
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