% matlab code to plot data generated by ex2.gms

% loads the data file ex2.dat into a matrix ex2.
load ex2.dat

% move it to A
A = ex2;

% take x to be first col of A, and let n be number of points.
x = A(:,1);
n = size(A,1);

figure(1);
h = plot(x,A(:,2),x,A(:,3),x,A(:,4),x,A(:,5));

% figure out axes scaling - find largest and smallest data elements
ymin = min(min(A(:,2:5)));
ymax = max(max(A(:,2:5)));
% add some padding in the Y direction
diff = ymax - ymin;
ymin = ymin - .1*diff; ymax = ymax + .1*diff;
axis([x(1) x(end) ymin ymax]);

% label the axes
xlabel('Time'); ylabel('A');

% make a cute legend, and add a title
legend(h,'a','b','c','d',0);
title('Example 2: Plot of GAMS data in Matlab');