Try this:
% Define data. x is in row 1, y is in row2.
set1=rand(2,10)
set2=rand(2,10)
% Plot lines between corresponding pairs
for k = 1 : size(set1, 2)
plot([set1(1,k), set2(1,k)], [set1(2,k), set2(2,k)], ...
'rs-', 'LineWidth', 2, 'MarkerSize', 10);
hold on
end
grid on;

