plotting date on x-axis

[Simon]

Hi everybody,

I want to plot some timeseries where the x-ticks are dates (for example 
"Nov. 1987" or "1.11.87").
That's where I am today...
forum
-------------
dt = datenum(y, m, d);      // y, m, d are vectors with information on 
year, month and day
all = [dt, data1, data2, data3];                  // data1-3 are 
data-vectors
-------------

till here I get:

-------------
all=
    724216.    6.6894479    6.6952958    0.20484   
    724217.    7.8806429    8.1755199    0.21636   
    724218.    9.0097742    10.1717      0.22731   
    724219.    9.3107634    11.451789    0.2525200 
    724220.    9.3775043    12.343613    0.3197800 
    724221.    9.3765812    12.939786    0.4009100 
    724222.    9.2700891    13.249661    0.5409700 
    724223.    9.1931381    13.444237    0.5119000 
    724224.    9.0925598    13.484509    0.47847
------------

when I plot that ( plot(all(:,1), [all(:,2), all(:,3), all(:,4)]) ), I 
only get the serial dates (first column) on the x-axis.

Do you, how I could go on? I guess I need something like what is 
datetick for matlab (found that expression on my research through the net).

Thank you,
Simon