MATLAB: Placing Markers at Every Tenth Data Point and creating Label

label;markerMATLABplot

I understand that in order to place markers at every tenth data point I have to plot the data twice, e.g.,

x1 = 0:pi/100:2*pi;
x2 = 0:pi/10:2*pi;
plot(x1,sin(x1),'r:',x2,sin(x2),'r+')

viz.: http://www.mathworks.com/help/matlab/learn_matlab/basic-plotting-functions.html

But how do I create a label that would display both?

Thank you!

Best Answer

If by label you mean a legend entry, I'd add a dummy line to use for labeling

 x = 0:pi/100:2*pi;
 y = sin(x);
 h = plot(x, y, ':r', x(1:10:end), y(1:10:end), 'r+', NaN, NaN, ':r+');
 legend(h(3), 'my label');

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