Excel data set to vectors

Hi im new to matlab. I have importet numerical matrix 299x4 from excel to matlab and devided it to x1, x2, y1 and y2 values:

But how do i make vectors from x1,y1, x2 and y2 values and then plot them. Like on this picture:

Answer 1

[darova]

Use quiver function

u1 = diff(x1);
v1 = diff(y1);
plot(x,y,'.r')
hold on
quiver(x1(1:end-1),y1(1:end-1),u1,v1)
hold off

[TokTik]

Thanks