error in figure in matlab

it not show to me a red dashed line with stars.

what can i do ??

the code is :

    figure();
    plot(V_X(1,:),V_X(2,:),'k');
    hold on;
    plot(matrixV(1,:),matrixV(2,:),'--r*')
    title(['גרף  כוח הגזירה  כאשר  החלוקה  N =  ',int2str(n)]);
    xlabel('x');
    hold off ;

Answer 1

[dpb]

It is, only you have so many points they're all on top of each other instead of being able to distinguish individual points.

You can see this in the present figure if you look very closely at the two ends -- you can see the little points of the first and last marker.

Set

xlim([0 1])

and you'll also see when there's more room.

For a more general solution, try something like

Npts=size(V,2);
nPlt=100;
nBetween=ceil(NPts/nPlt);
plot(matrixV(1,1:nBetween:end),matrixV(2,1:nBetween:end),'--r*')

Adjust nPlt to taste...

[madhan ravi]

+ 1 , I really like the way how you loosened the data;) using ceil().

[dpb]

Thanks...same idea came up just a couple weeks or so ago and I forgot to round the step variable having chosen an evenly divisble set of values in my check code. Of course the poster's sizes weren't. Didn't forget this time... :)