%% Display Markers at Specific Data Points on Line Graph
% This example shows how to make a line graph and display markers at
% particular data points.

% Copyright 2015 The MathWorks, Inc.


%%
% Define |x| and |y| as 100-element vectors. 
x = linspace(0,2*pi,100);
y = sin(x);

%%
% Plot |x| versus |y|. Display markers every $\pi/2$ data points by
% superimposing a second graph of just markers over the line graph.

xmarkers = 0:pi/2:2*pi; % place markers at these x-values
ymarkers = sin(xmarkers);

figure
plot(x,y,'b',xmarkers,ymarkers,'b*')

