Split Axes for cyclic process plotting

Im sure this has a very simple and quick answer but as of yet my searching hasnt returned anything, so im hoping the kind people on here may point me in the right direction so i at least know what to search for.

Looking to plot a pressure cycle but with a split x-axis such that the scale goes.

4 3 2 1 0 -1 -2 -3 -2 -1 0 1 2 3 4

As an example here is one of the papers that uses this method of ploting

http://i41.tinypic.com/12301ev.jpg

Many thanks in advance for you help.

Tom

Answer 1

[Wayne King]

Hi, you can always label your axis as you wish:

x = [4 3 2 1 0 -1 -2 -3 -2 -1 0 1 2 3 4];
plot(randn(30,1));
set(gca,'xtick',1:2:30);
set(gca,'xticklabel',x)