change the origin of a graph

Hi,

I want to draw a graph and its origin must be in the upper left corner of output. The numbers should increase positively down the y-axis. How can I do this?

Thanks

Answer 1

[Sulaymon Eshkabilov]

x = 1:13; y = 2*x+3;
plot(x, y, 'r*--'), grid on
set(gca, 'YDir','reverse'), xlabel('x'), ylabel('y')