How can I change the slopes of stairs plot?

The sequence of strokes is: horizontal, vertical _|. How to change it: vertical, horizontal |-?

Answer 1

[Marco Tullio]

Try

x = [1 2 3]
y = [5 6 7]
stairs(x,y,'-.o')
axis([0 11 0 11])

%  repeat 1st x
%  shift up the y
nx = [x(1) x]
ny = [y(1) y(2:end) y(end)]
hold on
stairs(nx,ny,'-x')