Marco Marini a écrit :

Hi everybody,
for seasonal time series it is often useful to graph
its observations period-by-period (every January, every February,...).
It can be easily programmed in a script, but I wonder if it is possible to
insert a specific command in the menu.
Thanks!
Marco

Ciao Marco!
I agree on the utility of a by-period graph but I guess it will be rather tricky to implement. But I hardly see how it can be "easily" programmed in a script since the "gnuplot" command does produce a file and not an image on the screen. Moreover, this command is not available in a loop. Alas!

Instead, your message  instilled in me a reflection. I think, it would be a good starting point if one could display variables on a by-period basis after having restricted the sample. I mean: actually, if you have a quarterly data file and set your sample on january, when displaying the variables the date disappears, replaced by "Obs 1, Obs 2 ....". The date is recovered only by setting the full range.

Distinti saluti,  :-)
Artur