MATLAB: How to have a better plot

better plot

I'm using codes given below in my program, but nodes which are plotted each loop are too small (maybe just one pixel). How can I bold nodes in my plot?
    figure(408)
    plot(S*step,Sigma{NodesR}(3),color)   
    hold on

Best Answer

Change the marker size to fit your needs:
plot(rand(10), '*','MarkerSize',10)
plot(rand(10), '*','MarkerSize',5)
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