Am 17.02.2021 20:51 schrieb Artur Tarassow:
 Hi,
 
 just by chance I found that periodic dummies are not named
 consistently. Currently we have:
 - quarterly data: dq1 to dq4
 - monthly data: dm1 to dm12
 - daily (5 days): dummy_1 to dummy_5
 
 I am wondering whether some harmonization is useful here?
 
 <hansl>
 clear
 set verbose off
 
 # quarterly dq*
 open AWM18.gdt -q
 list L = dataset
 genr dummy
 list N = dataset - L
 N
 
 # monthly -- dm*
 open hamilton.gdt -q
 list L = dataset
 genr dummy
 list N = dataset - L
 N
 
 # Daily (5 days)  -- dummy_*
 open b-g.gdt -q
 eval $datatype
 list L = dataset
 genr dummy
 list N = dataset - L
 </hansl> 
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.
Artur