MATLAB: Does anybody know how to plot this figure

eigenvaluesMATLABplotplottingtrajectory

I want to plot the eigenvalue trajectory when one of the system parameters is changed. I obtained a Matrix where each column represents the eigenvalues for a different value of K_q (check figure please). How can I proceed?

Best Answer

You can use plot(). Just plot each marker one at a time with the proper color

markerColor = [....3 numbers   ]; % Whatever color you want...
plot(x, y, '.', 'MarkerSize', 20, 'Color', markerColor);
hold on;

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Assuming that x, average, and average_2 are all row vectors

axes;
hold on;
plot(x, average,'o', 'MarkerEdgeColor', 'b', 'MarkerFaceColor', 'b');  % Blue points
plot(x, average_2,'o', 'MarkerEdgeColor', 'r', 'MarkerFaceColor', 'r');  % Red points
plot([x;x], [average; average_2], '-k');

If the data are column vectors you'll have to transpose the arrays.

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The color of the line is controlled by the 'color' parameter.

x = linspace(0,10,50);
y = sin(x);
plot(x,y,'-s','MarkerSize',10,...
    'MarkerEdgeColor','red',...
    'MarkerFaceColor',[1 .6 .6], 'color' 'r')   % 'color' added

Best Answer

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MATLAB: How can a draw a line between two points

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