Figure ploting data problem

Hello Matlab gurus! I have such code

if true
  % code 
matrix1={'1/1/2013';'2/1/2013';'3/1/2013'};
matrix2=[4;5;6];
x=datenum(matrix1);
plot(x,matrix2);
end
we get such graph
as you see on the axis it has converted time series but i want to have it original date values.
Any idea would be great help.
Waiting for your response.

Answer 1

[Mischa Kim]

Giorgi, add after the plot command

 set(gca,'XTick',x,'XTickLabel',matrix1)

to change the tick labels.

[Giorgi]

Well thanks a lot my friend

[Giorgi]

and one more question, for example I have 140 date, in this too many dates will overwrite on each other and it will be horrible, so what can i do if i want to write on the axis only every tenth date?

[Giorgi]

I mean intervals