% Download signal, then plot it.

load sunspots.asc;
sig4=sunspots;

% Plot signal.

plot(sig4,'b','markersize',5);axis([1 length(sig4) min(sig4) max(sig4)]);
title(['Signal sunspots']);grid


% "Complex and Chaotic Nonlinear Dynamics. 
% Advances in Economics and Finance, 
% Mathematics and Statistics" 
% T.Vialar, Springer 2009.
% Copyright(c).