Am 18.02.2021 um 08:07 schrieb atecon:
 After re-thinking my post, I think I should propose some way to
 harmonize things:
 If one applies the "dummify" command to some discrete series named
 "foo", one gets a list of new series named "D_foo_<VALUE>".
Apparently
 "D_" is the prefix for a "dummy" while"d_" is the prefix
when applying
 the "diff" command:
 <hansl>
 open denmark
 diff LRM
 </hansl>
 So in case we agree that harmonizing things would be useful (of
 course, fully ok if not) one could make use of either prefix for
 periodic dummies:"Dp_" or "dp_".
 However, one remark on this: I guess that change is not
 backward-compatible.
 
Hi Artur, do you want to open a tracker ticket?
cheers
sven