Plotting discontinuos X Data

I have a data set that looks like this :

datax = [6 7 8 9 14 48 49 50 55 87 88 89];  
datay = [1 1 1 1 2  3  3  3  4  5  5  5];

I want to make a single figure which will have essentially 5 lines corresponding to every jump in the x data. The first line will be ones reperesenting X index 1:4 i.e, 6,7,8,9 The second line will be a single point at 2 representing X index 5 i.e, 14 The third line will be threes representing X index 6:8 i.,e 48,49,50 and so on. Also the code should be extendable to any datax with discontinuities like shown above and produce a new line at every discontinuity.

Answer 1

[Mike Garrity]

You can use nan to represent discontinuities:

datax = [6 7 8 9 nan 14 nan 48 49 50 55 nan 87 88 89];  
datay = [1 1 1 1 nan 2  nan 3  3  3  4  nan 5  5  5];
plot(datax,datay,'-o')