MATLAB: How to retrieve the location of the points plotted ordered

arrayMATLAB and Simulink Student Suiteorderplot

I have two vectors x and y which are not sorted. However, when I plot(x,y), it results in the expected plot. Here is an example of the arrays and the plot. As you can see, I would like to have the vectors ordered starting from x(1) = 0, y(1) = 0 and then following the order of the dots as if it was a continuous line. I cannot figure it out how to automatize this process since I have quite a lot arrays/graphs to look at and it is not worth it to do it manually. 
x = [1.99802555286103e-05	2.11219844159594e-05	2.28345777469832e-05	2.39763066343323e-05	2.54034677435188e-05	2.59743321871934e-05	2.65451966308679e-05	2.74014932963798e-05	2.85432221837290e-05	2.85432221837290e-05	2.85432221837290e-05	2.85432221837290e-05	2.79723577400544e-05	2.76869255182171e-05	2.65451966308679e-05	2.54034677435188e-05	2.42617388561696e-05	2.28345777469832e-05	2.11219844159594e-05	1.91239588630984e-05	1.71259333102374e-05	1.59842044228882e-05	1.39861788700272e-05	1.19881533171662e-05	9.70469554246784e-06	7.42123776776952e-06	5.70864443674578e-06	3.99605110572207e-06	1.99802555286102e-06	0];
y = [-3.68207566170104e-05	-3.48227310641493e-05	-3.33955699549629e-05	-3.13975444021019e-05	-2.96849510710781e-05	-2.74014932963798e-05	-2.54034677435188e-05	-2.34054421906578e-05	-2.11219844159595e-05	-1.88385266412611e-05	-1.62696366447255e-05	-1.39861788700272e-05	-1.11318566516543e-05	-9.13383109879327e-06	-7.99210221144412e-06	-6.27950888042038e-06	-5.13777999307122e-06	-3.71061888388478e-06	-3.13975444021020e-06	-3.13975444021020e-06	-2.85432221837291e-06	-2.85432221837291e-06	-2.56888999653562e-06	-2.56888999653562e-06	-2.56888999653562e-06	-2.28345777469833e-06	-2.28345777469833e-06	-1.99802555286104e-06	-1.42716110918645e-06	0];

Best Answer

The easiest way to do that is to use the flip function (or fliplr or flipud, depending on what you want to do).
Try this: 
flipx = flip(x);
flipy = flip(y);
figure
plot(flipx, flipy)
grid
dx = gradient(flipx);                           % Optional



dy = gradient(flipy);                           % Optional
figure                                          % Optional
quiver(flipx, flipy, dx,dy)                     % Optional
grid
The quiver plot just demonstrates that the flip operation does what you want it to do. It is not necesary for the code.
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